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Finding the Fourth Proportional to 1,631.13, 2,446.97 and 591.20

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Solution

The fourth proportional to 1,631.13, 2,446.97 and 591.20 is: 886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.13 : 2,446.97 = 591.20 : x
  2. Step 2: Convert to fraction form
    1,631.13/2,446.97 = 591.20/x
  3. Step 3: Cross multiply
    1,631.13x = 2,446.97 × 591.20
  4. Step 4: Simplify right side
    1,631.13x = 1,446,633.47
  5. Step 5: Solve for x
    x = 1,446,633.47/1,631.13
  6. Step 6: Final answer
    x = 886.89

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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.