Home / 6,115.38-8,438.97-3,462.63

Finding the Fourth Proportional to 6,115.38, 8,438.97 and 3,462.63

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Solution

The fourth proportional to 6,115.38, 8,438.97 and 3,462.63 is: 4,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.38 : 8,438.97 = 3,462.63 : x
  2. Step 2: Convert to fraction form
    6,115.38/8,438.97 = 3,462.63/x
  3. Step 3: Cross multiply
    6,115.38x = 8,438.97 × 3,462.63
  4. Step 4: Simplify right side
    6,115.38x = 29,221,012.03
  5. Step 5: Solve for x
    x = 29,221,012.03/6,115.38
  6. Step 6: Final answer
    x = 4,778.29

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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.