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Finding the Fourth Proportional to 1,337.97, 2,003.29 and 898.61

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Solution

The fourth proportional to 1,337.97, 2,003.29 and 898.61 is: 1,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.97 : 2,003.29 = 898.61 : x
  2. Step 2: Convert to fraction form
    1,337.97/2,003.29 = 898.61/x
  3. Step 3: Cross multiply
    1,337.97x = 2,003.29 × 898.61
  4. Step 4: Simplify right side
    1,337.97x = 1,800,176.43
  5. Step 5: Solve for x
    x = 1,800,176.43/1,337.97
  6. Step 6: Final answer
    x = 1,345.45

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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.