Home / 5,425.52-8,138.28-2,649.84

Finding the Fourth Proportional to 5,425.52, 8,138.28 and 2,649.84

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Solution

The fourth proportional to 5,425.52, 8,138.28 and 2,649.84 is: 3,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.52 : 8,138.28 = 2,649.84 : x
  2. Step 2: Convert to fraction form
    5,425.52/8,138.28 = 2,649.84/x
  3. Step 3: Cross multiply
    5,425.52x = 8,138.28 × 2,649.84
  4. Step 4: Simplify right side
    5,425.52x = 21,565,139.88
  5. Step 5: Solve for x
    x = 21,565,139.88/5,425.52
  6. Step 6: Final answer
    x = 3,974.76

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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.