Problem Solving Using Proportions

• 27
• 12
• 1.333
• 3.67

• 14

• 7

• 2

• 112

Solve the proportion

• x = 3

• x = -3

• x = 1

• x = -1

The flag pole is 6 feet tall with a shadow of 10 feet. Using proportions, how tall is the pine tree?

• 10 ft

• 12 ft

• 20 ft

• 18 ft

A hiker want to determine the height of a cliff. She has measured her height (5.8ft) and shadow (7ft). She knows the cliff casts a shadow of 50ft. How tall is the cliff?

• 41.4ft

• 31.6ft

• 35.6ft

Solve for x by setting up a proportion.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

What is a proportion?

• When two ratios can be simplified

• When two ratios are equivalent and show the same value

• When two ratios have the exact same numbers

• When two ratios can be multiplied by 2

Determine whether this pair of ratios forms a proportion. 7/3, 14/6

• yes

• no

Determine whether this pair of ratios forms a proportion.   16/9, 9/6

• yes

• no

Determine whether this pair of ratios forms a proportion.   5/8, 2/3

• yes

• no