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Finding the Fourth Proportional to 6,379.74, 9,575.42 and 3,261.90

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Solution

The fourth proportional to 6,379.74, 9,575.42 and 3,261.90 is: 4,895.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.74 : 9,575.42 = 3,261.90 : x
  2. Step 2: Convert to fraction form
    6,379.74/9,575.42 = 3,261.90/x
  3. Step 3: Cross multiply
    6,379.74x = 9,575.42 × 3,261.90
  4. Step 4: Simplify right side
    6,379.74x = 31,234,001.30
  5. Step 5: Solve for x
    x = 31,234,001.30/6,379.74
  6. Step 6: Final answer
    x = 4,895.81

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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.