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Finding the Fourth Proportional to 6,379.36, 8,800.56 and 3,726.88

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Solution

The fourth proportional to 6,379.36, 8,800.56 and 3,726.88 is: 5,141.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.36 : 8,800.56 = 3,726.88 : x
  2. Step 2: Convert to fraction form
    6,379.36/8,800.56 = 3,726.88/x
  3. Step 3: Cross multiply
    6,379.36x = 8,800.56 × 3,726.88
  4. Step 4: Simplify right side
    6,379.36x = 32,798,631.05
  5. Step 5: Solve for x
    x = 32,798,631.05/6,379.36
  6. Step 6: Final answer
    x = 5,141.37

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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.