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Finding the Fourth Proportional to 6,615.27, 9,916.65 and 2,229.66

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Solution

The fourth proportional to 6,615.27, 9,916.65 and 2,229.66 is: 3,342.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.27 : 9,916.65 = 2,229.66 : x
  2. Step 2: Convert to fraction form
    6,615.27/9,916.65 = 2,229.66/x
  3. Step 3: Cross multiply
    6,615.27x = 9,916.65 × 2,229.66
  4. Step 4: Simplify right side
    6,615.27x = 22,110,757.84
  5. Step 5: Solve for x
    x = 22,110,757.84/6,615.27
  6. Step 6: Final answer
    x = 3,342.38

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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.