Question

first third and fourth term of a proportion is 3 15 35 respectively then second term is

Answer 1

Let a,b,c,d are in proportion ..So we can write it
a/b = c/d
Let second term is m
3/m = 15/35
Cross multiply
m= 3×35/15 = 7
Hope it will help you!!

Answer 2

Answer:

ʟᴇᴛ , ᴛʜᴇ sᴇᴄᴏɴᴅ ᴛᴇʀᴍ ʙᴇ x .

ᴀᴄᴄᴏʀᴅɪɴɢ , ᴛᴏ ǫᴜᴇsᴛɪᴏɴ 3 , x , 15 , 35

⇛ 3 : x :: 15 : 35

⇛ 3×35 = 15x

⇛ 105 = 15x

⇛ 15x = 105

⇛ 15x/15 = 105 / 15

⇛ x = 7 [ ᴀɴs ]