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Finding the Fourth Proportional to 6,612.13, 9,905.24 and 2,905.57

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Solution

The fourth proportional to 6,612.13, 9,905.24 and 2,905.57 is: 4,352.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.13 : 9,905.24 = 2,905.57 : x
  2. Step 2: Convert to fraction form
    6,612.13/9,905.24 = 2,905.57/x
  3. Step 3: Cross multiply
    6,612.13x = 9,905.24 × 2,905.57
  4. Step 4: Simplify right side
    6,612.13x = 28,780,353.66
  5. Step 5: Solve for x
    x = 28,780,353.66/6,612.13
  6. Step 6: Final answer
    x = 4,352.66

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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.