Home / 3,186.43-4,780.87-1,542.85

Finding the Fourth Proportional to 3,186.43, 4,780.87 and 1,542.85

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Solution

The fourth proportional to 3,186.43, 4,780.87 and 1,542.85 is: 2,314.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.43 : 4,780.87 = 1,542.85 : x
  2. Step 2: Convert to fraction form
    3,186.43/4,780.87 = 1,542.85/x
  3. Step 3: Cross multiply
    3,186.43x = 4,780.87 × 1,542.85
  4. Step 4: Simplify right side
    3,186.43x = 7,376,149.47
  5. Step 5: Solve for x
    x = 7,376,149.47/3,186.43
  6. Step 6: Final answer
    x = 2,314.86

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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.