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Finding the Fourth Proportional to 6,648.77, 9,973.56 and 2,487.80

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Solution

The fourth proportional to 6,648.77, 9,973.56 and 2,487.80 is: 3,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.77 : 9,973.56 = 2,487.80 : x
  2. Step 2: Convert to fraction form
    6,648.77/9,973.56 = 2,487.80/x
  3. Step 3: Cross multiply
    6,648.77x = 9,973.56 × 2,487.80
  4. Step 4: Simplify right side
    6,648.77x = 24,812,222.57
  5. Step 5: Solve for x
    x = 24,812,222.57/6,648.77
  6. Step 6: Final answer
    x = 3,731.85

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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.