Home / 1,151.28-1,587.60-1,073.52

Finding the Fourth Proportional to 1,151.28, 1,587.60 and 1,073.52

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Solution

The fourth proportional to 1,151.28, 1,587.60 and 1,073.52 is: 1,480.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.28 : 1,587.60 = 1,073.52 : x
  2. Step 2: Convert to fraction form
    1,151.28/1,587.60 = 1,073.52/x
  3. Step 3: Cross multiply
    1,151.28x = 1,587.60 × 1,073.52
  4. Step 4: Simplify right side
    1,151.28x = 1,704,320.35
  5. Step 5: Solve for x
    x = 1,704,320.35/1,151.28
  6. Step 6: Final answer
    x = 1,480.37

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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.