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Finding the Fourth Proportional to 6,604.86, 9,905.22 and 2,221.29

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Solution

The fourth proportional to 6,604.86, 9,905.22 and 2,221.29 is: 3,331.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604.86 : 9,905.22 = 2,221.29 : x
  2. Step 2: Convert to fraction form
    6,604.86/9,905.22 = 2,221.29/x
  3. Step 3: Cross multiply
    6,604.86x = 9,905.22 × 2,221.29
  4. Step 4: Simplify right side
    6,604.86x = 22,002,366.13
  5. Step 5: Solve for x
    x = 22,002,366.13/6,604.86
  6. Step 6: Final answer
    x = 3,331.24

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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.