Solving Proportions

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

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

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

Which ratio is proportional to the ratio   1/5?

• 2/5
• 2/10
• 5/1
• 15/20

Tags

CCSS.7.RP.A.2

• 3
• 5.3
• 1.08
• 27

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

• 27
• 12
• 1.333
• 3.67

Tags

CCSS.7.RP.A.2B

• 14
• 7
• 2
• 112

Tags

CCSS.7.EE.B.3

CCSS.7.EE.B.4

CCSS.7.NS.A.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Solve the proportion:

• 4
• 21
• 24
• 3

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Solve the proportion

• x = 3
• x = -3
• x = 1
• x = -1

Tags

CCSS.7.EE.B.3

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3