3 : 5 : : □ : 20

3 : 5 : : `square` : 20

Fill in the Blanks

3 : 5 : : 12 : 20

shaalaa.com

Is there an error in this question or solution?

Chapter 3: Ratio and Proportion - Exercise 3.3 [Page 58]

Chapter 3 Ratio and Proportion
Exercise 3.3 | Q 1. (i) | Page 58

Find two numbers such that the mean proportional between them is 14 and third proportional to them is 112.

Check whether the following numbers are in continued proportion.

1, 2, 3

Find the fourth proportion to the following:

0.7, 4.9 and 1.6

Find the third proportion to the following :

16x² and 24x

If q is the mean proportional between p and r, prove that
`p^2 - q^2 + r^2 = q^4[(1)/p^2 - (1)/q^2 + (1)/r^2]`.

Find the value of x in the following proportions : 2.5 : 1.5 = x : 3

If x + 5 is the mean proportion between x + 2 and x + 9, find the value of x.

If a, b, c are in proportion, then

If a + c = mb and `1/b + 1/d = m/c`, prove that a, b, c and d are in proportion.

Determine if the following are in proportion.

33, 121, 9, 96