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Finding the Fourth Proportional to 681.60, 937.92 and 652.48

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Solution

The fourth proportional to 681.60, 937.92 and 652.48 is: 897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.60 : 937.92 = 652.48 : x
  2. Step 2: Convert to fraction form
    681.60/937.92 = 652.48/x
  3. Step 3: Cross multiply
    681.60x = 937.92 × 652.48
  4. Step 4: Simplify right side
    681.60x = 611,974.04
  5. Step 5: Solve for x
    x = 611,974.04/681.60
  6. Step 6: Final answer
    x = 897.85

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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.