Home / 3,179.17-4,767.13-1,329.78

Finding the Fourth Proportional to 3,179.17, 4,767.13 and 1,329.78

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Solution

The fourth proportional to 3,179.17, 4,767.13 and 1,329.78 is: 1,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.17 : 4,767.13 = 1,329.78 : x
  2. Step 2: Convert to fraction form
    3,179.17/4,767.13 = 1,329.78/x
  3. Step 3: Cross multiply
    3,179.17x = 4,767.13 × 1,329.78
  4. Step 4: Simplify right side
    3,179.17x = 6,339,234.13
  5. Step 5: Solve for x
    x = 6,339,234.13/3,179.17
  6. Step 6: Final answer
    x = 1,993.99

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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.