Home / 5,143.62-7,100.10-3,469.80

Finding the Fourth Proportional to 5,143.62, 7,100.10 and 3,469.80

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Solution

The fourth proportional to 5,143.62, 7,100.10 and 3,469.80 is: 4,789.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.62 : 7,100.10 = 3,469.80 : x
  2. Step 2: Convert to fraction form
    5,143.62/7,100.10 = 3,469.80/x
  3. Step 3: Cross multiply
    5,143.62x = 7,100.10 × 3,469.80
  4. Step 4: Simplify right side
    5,143.62x = 24,635,926.98
  5. Step 5: Solve for x
    x = 24,635,926.98/5,143.62
  6. Step 6: Final answer
    x = 4,789.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.