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Finding the Fourth Proportional to 1,691.39, 2,538.20 and 595.76

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Solution

The fourth proportional to 1,691.39, 2,538.20 and 595.76 is: 894.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.39 : 2,538.20 = 595.76 : x
  2. Step 2: Convert to fraction form
    1,691.39/2,538.20 = 595.76/x
  3. Step 3: Cross multiply
    1,691.39x = 2,538.20 × 595.76
  4. Step 4: Simplify right side
    1,691.39x = 1,512,146.83
  5. Step 5: Solve for x
    x = 1,512,146.83/1,691.39
  6. Step 6: Final answer
    x = 894.02

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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.