Problem Solving Using Proportions

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.25 cups milk

Write and solve a proportion to determine how many yards are in 63 feet. Use the conversion that 1 yard = 3 feet.

• 180 yd

• 18.9 yd

• 189 yd

• 21 yd

At the same time a 6 foot person casts a 2 foot shadow, a nearby statue casts a ten foot shadow. How tall is the statue? Hint: drawing a picture might help visualize the problem to set up a proportion.

• 3 feet

• 10 feet

• 16 feet

• 30 feet

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.25 cups milk

Write and solve a proportion to determine how many yards are in 63 feet.

Use the conversion that 1 yard = 3 feet.

• 180 yd

• 18.9 yd

• 189 yd

• 21 yd

A builder could get 6 sheets of sheetrock for $10. If he bought 15 sheets, how much money would he have spent? Use a double number line to solve. 

• 20

• 21

• 25

• 30

At a school fundraiser for every 3 boxes of chocolate sold you earn 15 points. If you were to sell 7 boxes, how many points would you have earned?

• 35

• 33

• 31

• 30

At the carnival, the ratio of people who won the ring toss game to lost it was 8 : 5. If 24 people won, how many people would have lost?

• 3

• 13

• 15

• 24

In a bag of Jolly Ranchers, the ratio of blue to red is 3 to 4. 

If I have a TOTAL of 56 Jolly Ranchers, how many of them are blue? 

• 12

• 28

• 32

• 24

Write and solve a proportion to determine how many yards are in 63 feet. Use the conversion that 1 yard = 3 feet.

• 180 yd

• 18.9 yd

• 189 yd

• 21 yd