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Finding the Fourth Proportional to 6,630.31, 9,945.47 and 2,250.87

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Solution

The fourth proportional to 6,630.31, 9,945.47 and 2,250.87 is: 3,376.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.31 : 9,945.47 = 2,250.87 : x
  2. Step 2: Convert to fraction form
    6,630.31/9,945.47 = 2,250.87/x
  3. Step 3: Cross multiply
    6,630.31x = 9,945.47 × 2,250.87
  4. Step 4: Simplify right side
    6,630.31x = 22,385,960.06
  5. Step 5: Solve for x
    x = 22,385,960.06/6,630.31
  6. Step 6: Final answer
    x = 3,376.31

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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.