Home / 3,128.27-4,687.22-2,201.88

Finding the Fourth Proportional to 3,128.27, 4,687.22 and 2,201.88

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Solution

The fourth proportional to 3,128.27, 4,687.22 and 2,201.88 is: 3,299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.27 : 4,687.22 = 2,201.88 : x
  2. Step 2: Convert to fraction form
    3,128.27/4,687.22 = 2,201.88/x
  3. Step 3: Cross multiply
    3,128.27x = 4,687.22 × 2,201.88
  4. Step 4: Simplify right side
    3,128.27x = 10,320,684.96
  5. Step 5: Solve for x
    x = 10,320,684.96/3,128.27
  6. Step 6: Final answer
    x = 3,299.17

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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.