Home / 4,778.46-7,166.68-3,387.89

Finding the Fourth Proportional to 4,778.46, 7,166.68 and 3,387.89

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Solution

The fourth proportional to 4,778.46, 7,166.68 and 3,387.89 is: 5,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.46 : 7,166.68 = 3,387.89 : x
  2. Step 2: Convert to fraction form
    4,778.46/7,166.68 = 3,387.89/x
  3. Step 3: Cross multiply
    4,778.46x = 7,166.68 × 3,387.89
  4. Step 4: Simplify right side
    4,778.46x = 24,279,932.95
  5. Step 5: Solve for x
    x = 24,279,932.95/4,778.46
  6. Step 6: Final answer
    x = 5,081.12

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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.