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Finding the Fourth Proportional to 6,663.86, 10,001.90 and 3,379.31

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Solution

The fourth proportional to 6,663.86, 10,001.90 and 3,379.31 is: 5,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.86 : 10,001.90 = 3,379.31 : x
  2. Step 2: Convert to fraction form
    6,663.86/10,001.90 = 3,379.31/x
  3. Step 3: Cross multiply
    6,663.86x = 10,001.90 × 3,379.31
  4. Step 4: Simplify right side
    6,663.86x = 33,799,479.13
  5. Step 5: Solve for x
    x = 33,799,479.13/6,663.86
  6. Step 6: Final answer
    x = 5,072.06

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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.