Proportion Word Problems

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you find a missing value in a proportion?

Back

To find a missing value in a proportion, you can cross-multiply and solve for the unknown.

Front

If a car travels 360 miles in 6 hours, what is its speed in miles per hour?

Back

60 miles per hour.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

If 5 books cost $25, what is the cost of 1 book?

Back

$5.

Front

What is the relationship between quantities in a proportion word problem?

Back

The relationship is represented by the ratio between the quantities.

Front

A recipe requires 2 cups of flour for 24 cookies. How much flour is needed for 12 cookies?

Back

1 cup of flour.

Front

If a car travels 300 miles in 5 hours, what is the distance it can travel in 2 hours?

Back

120 miles.

Front

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is 1.

Front

How do you set up a proportion?

Back

You set up a proportion by creating a fraction for each ratio and setting them equal to each other.