Home / 6,115.86-8,440.07-3,463.20

Finding the Fourth Proportional to 6,115.86, 8,440.07 and 3,463.20

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Solution

The fourth proportional to 6,115.86, 8,440.07 and 3,463.20 is: 4,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.86 : 8,440.07 = 3,463.20 : x
  2. Step 2: Convert to fraction form
    6,115.86/8,440.07 = 3,463.20/x
  3. Step 3: Cross multiply
    6,115.86x = 8,440.07 × 3,463.20
  4. Step 4: Simplify right side
    6,115.86x = 29,229,650.42
  5. Step 5: Solve for x
    x = 29,229,650.42/6,115.86
  6. Step 6: Final answer
    x = 4,779.32

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Half scale
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Double scale
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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.