Question

the first three terms of a proportion 3,5,2 respectively find it's forth terms​

Answer 1

Answer:

this is the answer in the photo

Answer 2

Step-by-step explanation:

What's your doubt?

Maths

Bookmark

If the first three terms of a proportion are 3,5 and 21 respectively, then its fourth term is

share

Share

Answer

Correct option is

B

35

Given, the first three terms of a proportion are 3,5 and 21 respectively.

Let the fourth number be

′

x

′

,

So, Numbers proportion are 3,5,21,x

According to proportionality,

Product of means = Product of extremes

3:5::21:x

5

3

=

x

21

Cross multiply,

3×x=21×5

3x=105

x=35

Therefore, The required fourth number is 35

verified_toppr

Answer verified by Toppr