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Finding the Fourth Proportional to 6,630.68, 9,947.97 and 2,679.90

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Solution

The fourth proportional to 6,630.68, 9,947.97 and 2,679.90 is: 4,020.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.68 : 9,947.97 = 2,679.90 : x
  2. Step 2: Convert to fraction form
    6,630.68/9,947.97 = 2,679.90/x
  3. Step 3: Cross multiply
    6,630.68x = 9,947.97 × 2,679.90
  4. Step 4: Simplify right side
    6,630.68x = 26,659,527.50
  5. Step 5: Solve for x
    x = 26,659,527.50/6,630.68
  6. Step 6: Final answer
    x = 4,020.63

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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.