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Finding the Fourth Proportional to 882.52, 1,217.90 and 533

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Solution

The fourth proportional to 882.52, 1,217.90 and 533 is: 735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.52 : 1,217.90 = 533 : x
  2. Step 2: Convert to fraction form
    882.52/1,217.90 = 533/x
  3. Step 3: Cross multiply
    882.52x = 1,217.90 × 533
  4. Step 4: Simplify right side
    882.52x = 649,140.70
  5. Step 5: Solve for x
    x = 649,140.70/882.52
  6. Step 6: Final answer
    x = 735.55

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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.