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Finding the Fourth Proportional to 6,379.05, 8,803.08 and 3,726.47

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Solution

The fourth proportional to 6,379.05, 8,803.08 and 3,726.47 is: 5,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.05 : 8,803.08 = 3,726.47 : x
  2. Step 2: Convert to fraction form
    6,379.05/8,803.08 = 3,726.47/x
  3. Step 3: Cross multiply
    6,379.05x = 8,803.08 × 3,726.47
  4. Step 4: Simplify right side
    6,379.05x = 32,804,451.20
  5. Step 5: Solve for x
    x = 32,804,451.20/6,379.05
  6. Step 6: Final answer
    x = 5,142.53

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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.