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Finding the Fourth Proportional to 6,672.29, 10,005.13 and 3,899.66

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Solution

The fourth proportional to 6,672.29, 10,005.13 and 3,899.66 is: 5,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.29 : 10,005.13 = 3,899.66 : x
  2. Step 2: Convert to fraction form
    6,672.29/10,005.13 = 3,899.66/x
  3. Step 3: Cross multiply
    6,672.29x = 10,005.13 × 3,899.66
  4. Step 4: Simplify right side
    6,672.29x = 39,016,585.76
  5. Step 5: Solve for x
    x = 39,016,585.76/6,672.29
  6. Step 6: Final answer
    x = 5,847.56

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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.