Home / 1,528.17-2,292.26-432.54

Finding the Fourth Proportional to 1,528.17, 2,292.26 and 432.54

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Solution

The fourth proportional to 1,528.17, 2,292.26 and 432.54 is: 648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.17 : 2,292.26 = 432.54 : x
  2. Step 2: Convert to fraction form
    1,528.17/2,292.26 = 432.54/x
  3. Step 3: Cross multiply
    1,528.17x = 2,292.26 × 432.54
  4. Step 4: Simplify right side
    1,528.17x = 991,491.98
  5. Step 5: Solve for x
    x = 991,491.98/1,528.17
  6. Step 6: Final answer
    x = 648.81

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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.