Solving Proportion Word Problems Effectively

The video tutorial explains how to solve proportion word problems by setting up ratios and using cross multiplication. It covers three examples: calculating miles hiked in a given time, determining sugar needed for cookies, and finding the cost of necklaces. The tutorial emphasizes the importance of setting up proportions correctly and checking solutions.

What is the first step in setting up a proportion problem?

• Set up the equation

• Circle the units

• Solve for x

• Check your work

Tags

CCSS.7.RP.A.2C

In the hiking example, how many miles were hiked in 4 hours?

• 18 miles

• 45 miles

• 10 miles

• 4 miles

Tags

CCSS.6.RP.A.3B

What is the cross product of 10 miles and 18 hours in the hiking example?

• 10

• 4

• 45

• 180

Tags

CCSS.7.EE.B.3

In the recipe example, how many cups of sugar are needed for 12 cookies?

• 12 cups

• 30 cups

• 2.5 cups

• 6.25 cups

Tags

CCSS.6.RP.A.3B

What is the result of 2.5 multiplied by 30 in the recipe example?

• 75

• 12

• 30

• 6.25

Tags

CCSS.6.NS.B.3

In the necklaces example, how many necklaces cost $40?

• 12 necklaces

• 16 necklaces

• 30 necklaces

• 40 necklaces

What is the cost of 12 necklaces in the necklaces example?

• $40

• $16

• $12

• $30

Tags

CCSS.3.OA.A.3

What is the cross product of 16 necklaces and 30 in the necklaces example?

• 480

• 40

• 12

• 16

What is the final step in solving a proportion word problem?

• Set up the equation

• Circle the units

• Check your work

• Solve for x

Tags

CCSS.7.RP.A.3

What is the purpose of cross multiplication in solving proportions?

• To check the work

• To set up the equation

• To find the units

• To solve for the unknown

Tags

CCSS.7.EE.B.3