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Finding the Fourth Proportional to 2,998.89, 4,499.97 and 1,355.31

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Solution

The fourth proportional to 2,998.89, 4,499.97 and 1,355.31 is: 2,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.89 : 4,499.97 = 1,355.31 : x
  2. Step 2: Convert to fraction form
    2,998.89/4,499.97 = 1,355.31/x
  3. Step 3: Cross multiply
    2,998.89x = 4,499.97 × 1,355.31
  4. Step 4: Simplify right side
    2,998.89x = 6,098,854.34
  5. Step 5: Solve for x
    x = 6,098,854.34/2,998.89
  6. Step 6: Final answer
    x = 2,033.70

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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.