Question

The last three terms of a proportion are 2,3 and 6. What is the first term? ​

Answer 1

Answer:

2:3::6:x

a×d=b×c

2×x=3×6

2x=18

x=18/2

x=9

Answer 2

Answer:

let the first term is x

then x:2: : 3:6

=> x/2=3/6

=> x/2=1/2

=> x=1

the first term is 1