Home / 1,039.08-1,434-573.36

Finding the Fourth Proportional to 1,039.08, 1,434 and 573.36

Calculator

Solution

The fourth proportional to 1,039.08, 1,434 and 573.36 is: 791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.08 : 1,434 = 573.36 : x
  2. Step 2: Convert to fraction form
    1,039.08/1,434 = 573.36/x
  3. Step 3: Cross multiply
    1,039.08x = 1,434 × 573.36
  4. Step 4: Simplify right side
    1,039.08x = 822,198.24
  5. Step 5: Solve for x
    x = 822,198.24/1,039.08
  6. Step 6: Final answer
    x = 791.28

Related Problems

Find fourth proportional to 519.54, 717 and 286.68
Half scale
Find fourth proportional to 2,078.16, 2,868 and 1,146.72
Double scale
Find fourth proportional to 1,040.08, 1,435.38 and 574.36
Similar ratio
Find fourth proportional to 1,558.62, 2,151 and 860.04
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.