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Finding the Fourth Proportional to 6,647.57, 9,973.09 and 2,487.90

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Solution

The fourth proportional to 6,647.57, 9,973.09 and 2,487.90 is: 3,732.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.57 : 9,973.09 = 2,487.90 : x
  2. Step 2: Convert to fraction form
    6,647.57/9,973.09 = 2,487.90/x
  3. Step 3: Cross multiply
    6,647.57x = 9,973.09 × 2,487.90
  4. Step 4: Simplify right side
    6,647.57x = 24,812,044.39
  5. Step 5: Solve for x
    x = 24,812,044.39/6,647.57
  6. Step 6: Final answer
    x = 3,732.50

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1.5x scale

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.