Home / 6,121.38-8,442.73-4,104.12

Finding the Fourth Proportional to 6,121.38, 8,442.73 and 4,104.12

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Solution

The fourth proportional to 6,121.38, 8,442.73 and 4,104.12 is: 5,660.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.38 : 8,442.73 = 4,104.12 : x
  2. Step 2: Convert to fraction form
    6,121.38/8,442.73 = 4,104.12/x
  3. Step 3: Cross multiply
    6,121.38x = 8,442.73 × 4,104.12
  4. Step 4: Simplify right side
    6,121.38x = 34,649,977.05
  5. Step 5: Solve for x
    x = 34,649,977.05/6,121.38
  6. Step 6: Final answer
    x = 5,660.48

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Half scale
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Double scale
Find fourth proportional to 6,122.38, 8,444.11 and 4,105.12
Similar ratio
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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.