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Finding the Fourth Proportional to 7,481.53, 11,221.89 and 2,287

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Solution

The fourth proportional to 7,481.53, 11,221.89 and 2,287 is: 3,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.53 : 11,221.89 = 2,287 : x
  2. Step 2: Convert to fraction form
    7,481.53/11,221.89 = 2,287/x
  3. Step 3: Cross multiply
    7,481.53x = 11,221.89 × 2,287
  4. Step 4: Simplify right side
    7,481.53x = 25,664,462.43
  5. Step 5: Solve for x
    x = 25,664,462.43/7,481.53
  6. Step 6: Final answer
    x = 3,430.38

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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.