Home / 3,011.24-4,516.85-819.97

Finding the Fourth Proportional to 3,011.24, 4,516.85 and 819.97

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Solution

The fourth proportional to 3,011.24, 4,516.85 and 819.97 is: 1,229.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.24 : 4,516.85 = 819.97 : x
  2. Step 2: Convert to fraction form
    3,011.24/4,516.85 = 819.97/x
  3. Step 3: Cross multiply
    3,011.24x = 4,516.85 × 819.97
  4. Step 4: Simplify right side
    3,011.24x = 3,703,672.25
  5. Step 5: Solve for x
    x = 3,703,672.25/3,011.24
  6. Step 6: Final answer
    x = 1,229.95

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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.