Home / 6,120.38-8,441.35-4,103.12

Finding the Fourth Proportional to 6,120.38, 8,441.35 and 4,103.12

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Solution

The fourth proportional to 6,120.38, 8,441.35 and 4,103.12 is: 5,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.38 : 8,441.35 = 4,103.12 : x
  2. Step 2: Convert to fraction form
    6,120.38/8,441.35 = 4,103.12/x
  3. Step 3: Cross multiply
    6,120.38x = 8,441.35 × 4,103.12
  4. Step 4: Simplify right side
    6,120.38x = 34,635,882.86
  5. Step 5: Solve for x
    x = 34,635,882.86/6,120.38
  6. Step 6: Final answer
    x = 5,659.10

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Half scale
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Double scale
Find fourth proportional to 6,121.38, 8,442.73 and 4,104.12
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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.