Home / 5,226.92-7,213.38-3,131

Finding the Fourth Proportional to 5,226.92, 7,213.38 and 3,131

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Solution

The fourth proportional to 5,226.92, 7,213.38 and 3,131 is: 4,320.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.92 : 7,213.38 = 3,131 : x
  2. Step 2: Convert to fraction form
    5,226.92/7,213.38 = 3,131/x
  3. Step 3: Cross multiply
    5,226.92x = 7,213.38 × 3,131
  4. Step 4: Simplify right side
    5,226.92x = 22,585,092.78
  5. Step 5: Solve for x
    x = 22,585,092.78/5,226.92
  6. Step 6: Final answer
    x = 4,320.92

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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.