Home / 3,186.54-4,781.38-1,432.75

Finding the Fourth Proportional to 3,186.54, 4,781.38 and 1,432.75

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Solution

The fourth proportional to 3,186.54, 4,781.38 and 1,432.75 is: 2,149.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.54 : 4,781.38 = 1,432.75 : x
  2. Step 2: Convert to fraction form
    3,186.54/4,781.38 = 1,432.75/x
  3. Step 3: Cross multiply
    3,186.54x = 4,781.38 × 1,432.75
  4. Step 4: Simplify right side
    3,186.54x = 6,850,522.20
  5. Step 5: Solve for x
    x = 6,850,522.20/3,186.54
  6. Step 6: Final answer
    x = 2,149.83

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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.