Home / 3,911.22-5,397.11-2,232.61

Finding the Fourth Proportional to 3,911.22, 5,397.11 and 2,232.61

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Solution

The fourth proportional to 3,911.22, 5,397.11 and 2,232.61 is: 3,080.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.22 : 5,397.11 = 2,232.61 : x
  2. Step 2: Convert to fraction form
    3,911.22/5,397.11 = 2,232.61/x
  3. Step 3: Cross multiply
    3,911.22x = 5,397.11 × 2,232.61
  4. Step 4: Simplify right side
    3,911.22x = 12,049,614.77
  5. Step 5: Solve for x
    x = 12,049,614.77/3,911.22
  6. Step 6: Final answer
    x = 3,080.79

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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.