Home / 1,528.24-2,292.41-432.49

Finding the Fourth Proportional to 1,528.24, 2,292.41 and 432.49

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Solution

The fourth proportional to 1,528.24, 2,292.41 and 432.49 is: 648.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.24 : 2,292.41 = 432.49 : x
  2. Step 2: Convert to fraction form
    1,528.24/2,292.41 = 432.49/x
  3. Step 3: Cross multiply
    1,528.24x = 2,292.41 × 432.49
  4. Step 4: Simplify right side
    1,528.24x = 991,447.97
  5. Step 5: Solve for x
    x = 991,447.97/1,528.24
  6. Step 6: Final answer
    x = 648.75

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.