## Bharat Gupta is teaching live on Unacademy Plus

RATIO AND PROPORTION Class 7 Proportion part-1)

Proportion If two ratio are equal, it is known as proportion Ca

Proportion If two ratio are equal, it is known as proportion Ca uaw

Calculating missing term of proportion Fourth proportion Find fourth proportion of 2, 5, 3 2,S, 3, :S3 7L

Calculating missing term of proportion First proportion Find first proportion of 3, 6, 10

Calculating missing term of proportion Third proportion Find third proportion of 2 and 5 ru

Calculating missing term of proportion Mean proportion Find Mean proportion of 3 and 12 2, 12 3, x, 12.

The first, second and fourth terms of a progression are 7, 21 and 45 respectively. Find the third term.

The first, second and fourth terms of a progression are 7, 21 and 45 respectively. Find the third term. 21. YS

lfx : y 3 : 1, then xa_y x3ty3 will be equal to which of the following? a, 13:14 b. 14 13 C. 10:11 d. 11:10