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Finding the Fourth Proportional to 6,379.14, 8,802.90 and 3,726.66

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Solution

The fourth proportional to 6,379.14, 8,802.90 and 3,726.66 is: 5,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.14 : 8,802.90 = 3,726.66 : x
  2. Step 2: Convert to fraction form
    6,379.14/8,802.90 = 3,726.66/x
  3. Step 3: Cross multiply
    6,379.14x = 8,802.90 × 3,726.66
  4. Step 4: Simplify right side
    6,379.14x = 32,805,415.31
  5. Step 5: Solve for x
    x = 32,805,415.31/6,379.14
  6. Step 6: Final answer
    x = 5,142.61

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1.5x scale

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.