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Finding the Fourth Proportional to 6,295.11, 8,687.94 and 3,938.01

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Solution

The fourth proportional to 6,295.11, 8,687.94 and 3,938.01 is: 5,434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,295.11 : 8,687.94 = 3,938.01 : x
  2. Step 2: Convert to fraction form
    6,295.11/8,687.94 = 3,938.01/x
  3. Step 3: Cross multiply
    6,295.11x = 8,687.94 × 3,938.01
  4. Step 4: Simplify right side
    6,295.11x = 34,213,174.91
  5. Step 5: Solve for x
    x = 34,213,174.91/6,295.11
  6. Step 6: Final answer
    x = 5,434.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.