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Finding the Fourth Proportional to 1,798.08, 2,691.90 and 1,337.91

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Solution

The fourth proportional to 1,798.08, 2,691.90 and 1,337.91 is: 2,002.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.08 : 2,691.90 = 1,337.91 : x
  2. Step 2: Convert to fraction form
    1,798.08/2,691.90 = 1,337.91/x
  3. Step 3: Cross multiply
    1,798.08x = 2,691.90 × 1,337.91
  4. Step 4: Simplify right side
    1,798.08x = 3,601,519.93
  5. Step 5: Solve for x
    x = 3,601,519.93/1,798.08
  6. Step 6: Final answer
    x = 2,002.98

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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.