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Finding the Fourth Proportional to 6,499.12, 8,962.68 and 4,379.44

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Solution

The fourth proportional to 6,499.12, 8,962.68 and 4,379.44 is: 6,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,499.12 : 8,962.68 = 4,379.44 : x
  2. Step 2: Convert to fraction form
    6,499.12/8,962.68 = 4,379.44/x
  3. Step 3: Cross multiply
    6,499.12x = 8,962.68 × 4,379.44
  4. Step 4: Simplify right side
    6,499.12x = 39,251,519.30
  5. Step 5: Solve for x
    x = 39,251,519.30/6,499.12
  6. Step 6: Final answer
    x = 6,039.51

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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.