Question

Find whether the given numbers are in
proportion.
a.
4, 6, 8, 10 = ...
b. 3, 9, 9, 27 =
C.
6, 25, 24, 100 = ...
d.
5 1 ,1 ,1,1
6' 3'4'5​

Answer 1

Answer:

a. No

b. Yes

c. Yes

Step-by-step explanation:

a) 4:6 not equal to 8:10

2:3 not equal to 4:5

b) 3:9::9:27

1:3::1:3

c) 6:25::24:100

6:25::6:25

Answer 2

Step-by-step explanation:

1) Given numbers are 4,6,8,10

The product of means=6×8=48

The product of extremes=4×10=40

The product of means ≠The product of extremes

4,6,8,10 are not in the proportion.

2)Given numbers are 3,9,9,27

The product of means=9×9=81

The product of extremes=3×27=81

The product of means=The product of extremes

3,9,9,27 are in the proportion.

3)Given numbers are6,25,24,100

The product of means=25×24=600

The product of extremes=6×100=600

The product of means=The product of extremes

6,25,24,100 are in the proportion.

4)Given numbers are 51,1,1,1

The product of means=1×1=1

The product of extremes=51×1=51

The product of means≠The product of extremes

51,1,1,1 are not in the proportion.

5)Given numbers are 6,3,4,5

The product of means=3×4=12

The product of extremes=6×5=30

The product of means≠The product of extremes

6,3,4,5 are not in the proportion.

Rule :- If given numbers are in proportion then the product of means should be equal to the product of extremes