Question 49079
a= circle area
x= triangle area
n= square area

so n=1.75*x=1.75x
   n=1.5*a=1.5a
and x+a+n=4000

x+a+1.75x=4000
a+2.75x=4000
a=4000-2.75x

x+a+1.5a=4000
2.5a+x=4000
2.5*(4000-2.75x)+x=4000
10000-6.875x+x=4000
6.875x-x=10000-4000
5.875x=6000
x=1021.28

and thus
a=4000-2.75x
a=4000-(2.75*1021.28)
a=4000-2808.51
a=1191.49

and check this out
n=1.5a=1.5*1191.49=1787.23 (let pick this one b'coz it makes 4000 even)
n=1.75x=1.75*1021.28=1787.24

x+a+n=4000
1021.28+1191.49+1787.23=4000