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Finding the Fourth Proportional to 7,488.93, 11,230.96 and 2,489.96

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Solution

The fourth proportional to 7,488.93, 11,230.96 and 2,489.96 is: 3,734.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.93 : 11,230.96 = 2,489.96 : x
  2. Step 2: Convert to fraction form
    7,488.93/11,230.96 = 2,489.96/x
  3. Step 3: Cross multiply
    7,488.93x = 11,230.96 × 2,489.96
  4. Step 4: Simplify right side
    7,488.93x = 27,964,641.16
  5. Step 5: Solve for x
    x = 27,964,641.16/7,488.93
  6. Step 6: Final answer
    x = 3,734.13

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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.