Home / 4,272.30-6,408.45-4,229.10

Finding the Fourth Proportional to 4,272.30, 6,408.45 and 4,229.10

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Solution

The fourth proportional to 4,272.30, 6,408.45 and 4,229.10 is: 6,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.30 : 6,408.45 = 4,229.10 : x
  2. Step 2: Convert to fraction form
    4,272.30/6,408.45 = 4,229.10/x
  3. Step 3: Cross multiply
    4,272.30x = 6,408.45 × 4,229.10
  4. Step 4: Simplify right side
    4,272.30x = 27,101,975.90
  5. Step 5: Solve for x
    x = 27,101,975.90/4,272.30
  6. Step 6: Final answer
    x = 6,343.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.