Home / 6,115.42-8,439.24-3,320.92

Finding the Fourth Proportional to 6,115.42, 8,439.24 and 3,320.92

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Solution

The fourth proportional to 6,115.42, 8,439.24 and 3,320.92 is: 4,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.42 : 8,439.24 = 3,320.92 : x
  2. Step 2: Convert to fraction form
    6,115.42/8,439.24 = 3,320.92/x
  3. Step 3: Cross multiply
    6,115.42x = 8,439.24 × 3,320.92
  4. Step 4: Simplify right side
    6,115.42x = 28,026,040.90
  5. Step 5: Solve for x
    x = 28,026,040.90/6,115.42
  6. Step 6: Final answer
    x = 4,582.85

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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.