Home / 3,179.80-4,772.66-3,168.12

Finding the Fourth Proportional to 3,179.80, 4,772.66 and 3,168.12

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Solution

The fourth proportional to 3,179.80, 4,772.66 and 3,168.12 is: 4,755.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.80 : 4,772.66 = 3,168.12 : x
  2. Step 2: Convert to fraction form
    3,179.80/4,772.66 = 3,168.12/x
  3. Step 3: Cross multiply
    3,179.80x = 4,772.66 × 3,168.12
  4. Step 4: Simplify right side
    3,179.80x = 15,120,359.60
  5. Step 5: Solve for x
    x = 15,120,359.60/3,179.80
  6. Step 6: Final answer
    x = 4,755.13

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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.