Home / 2,213.27-3,320.45-752.43

Finding the Fourth Proportional to 2,213.27, 3,320.45 and 752.43

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Solution

The fourth proportional to 2,213.27, 3,320.45 and 752.43 is: 1,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.27 : 3,320.45 = 752.43 : x
  2. Step 2: Convert to fraction form
    2,213.27/3,320.45 = 752.43/x
  3. Step 3: Cross multiply
    2,213.27x = 3,320.45 × 752.43
  4. Step 4: Simplify right side
    2,213.27x = 2,498,402.43
  5. Step 5: Solve for x
    x = 2,498,402.43/2,213.27
  6. Step 6: Final answer
    x = 1,128.83

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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.