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Finding the Fourth Proportional to 6,348.98, 8,757.11 and 3,956.95

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Solution

The fourth proportional to 6,348.98, 8,757.11 and 3,956.95 is: 5,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,348.98 : 8,757.11 = 3,956.95 : x
  2. Step 2: Convert to fraction form
    6,348.98/8,757.11 = 3,956.95/x
  3. Step 3: Cross multiply
    6,348.98x = 8,757.11 × 3,956.95
  4. Step 4: Simplify right side
    6,348.98x = 34,651,467.25
  5. Step 5: Solve for x
    x = 34,651,467.25/6,348.98
  6. Step 6: Final answer
    x = 5,457.80

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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.