Home / 4,138.96-5,711.79-2,250.55

Finding the Fourth Proportional to 4,138.96, 5,711.79 and 2,250.55

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Solution

The fourth proportional to 4,138.96, 5,711.79 and 2,250.55 is: 3,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.96 : 5,711.79 = 2,250.55 : x
  2. Step 2: Convert to fraction form
    4,138.96/5,711.79 = 2,250.55/x
  3. Step 3: Cross multiply
    4,138.96x = 5,711.79 × 2,250.55
  4. Step 4: Simplify right side
    4,138.96x = 12,854,668.98
  5. Step 5: Solve for x
    x = 12,854,668.98/4,138.96
  6. Step 6: Final answer
    x = 3,105.77

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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.