Home / 7,138.88-10,710.17-4,179.83

Finding the Fourth Proportional to 7,138.88, 10,710.17 and 4,179.83

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Solution

The fourth proportional to 7,138.88, 10,710.17 and 4,179.83 is: 6,270.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.88 : 10,710.17 = 4,179.83 : x
  2. Step 2: Convert to fraction form
    7,138.88/10,710.17 = 4,179.83/x
  3. Step 3: Cross multiply
    7,138.88x = 10,710.17 × 4,179.83
  4. Step 4: Simplify right side
    7,138.88x = 44,766,684.73
  5. Step 5: Solve for x
    x = 44,766,684.73/7,138.88
  6. Step 6: Final answer
    x = 6,270.82

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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.