Creating Proportions

Caitlyn bought 3.5 lbs apples at Kroger for $4.20. Which proportion could you use to find the cost of 5 lbs of apples?

A map is set to a scale factor of  32 mm  = 1 km. Use this scale to answer questions 1-3.

1. 1. Two mountains are 451.1 mm apart on the map. Create a proportion that could be used to determine the actual distance between the mountains.

Use proportions to solve for the actual distance between the mountains. Round the answer to the nearest tenth.

• 14.1 km

• 0.1 km

• 14435.2 km

• 45.1 km

In a construction zone, there are black and gray beams that are being used for a building that are proportional in size. The black beams are 5 feet wide and 16 feet long, and the gray beams are 12.5 feet long. Use this information to answer questions 4-5.

a

b

5

16

12.5

5.   Using the above proportion, solve to determine the width of the gray beams.

• 3.9 feet

• 6.4 feet

• 40 feet

• 62.5 feet

Use the following information to solve problems 6-8. Suppose people live in apartment buildings in Charlotte County, Florida. A sample of people were polled asking them, if given the opportunity, would they move into a new house. · 144 said yes. · 150 said no. · 16 were undecided. 7. Create a proportion and solve to determine the total number of people who said yes.

• 4088 people said yes

• 5 people said yes

• 18944 people said yes

• 44640 people said yes

Use the following information to solve problems 6-8. Suppose people live in apartment buildings in Charlotte County, Florida. A sample of people were polled asking them, if given the opportunity, would they move into a new house. · 144 said yes. · 150 said no. · 16 were undecided. 8. Create a proportion and solve to determine the total number of people who said no.

• 4258 people said no

• 5 people said no

• 18186 people said no

• 46500 people said no

• 4

• 14

• 8

• 10

Solve the proportion:

• x = 15

• x = 11

• x = 20

Match the following fractions to their equivalent fraction, creating proportions.