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Finding the Fourth Proportional to 6,687.93, 10,035.41 and 3,920.03

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Solution

The fourth proportional to 6,687.93, 10,035.41 and 3,920.03 is: 5,882.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.93 : 10,035.41 = 3,920.03 : x
  2. Step 2: Convert to fraction form
    6,687.93/10,035.41 = 3,920.03/x
  3. Step 3: Cross multiply
    6,687.93x = 10,035.41 × 3,920.03
  4. Step 4: Simplify right side
    6,687.93x = 39,339,108.26
  5. Step 5: Solve for x
    x = 39,339,108.26/6,687.93
  6. Step 6: Final answer
    x = 5,882.11

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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.