Home / 3,201.68-4,414.01-2,139.57

Finding the Fourth Proportional to 3,201.68, 4,414.01 and 2,139.57

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Solution

The fourth proportional to 3,201.68, 4,414.01 and 2,139.57 is: 2,949.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.68 : 4,414.01 = 2,139.57 : x
  2. Step 2: Convert to fraction form
    3,201.68/4,414.01 = 2,139.57/x
  3. Step 3: Cross multiply
    3,201.68x = 4,414.01 × 2,139.57
  4. Step 4: Simplify right side
    3,201.68x = 9,444,072.68
  5. Step 5: Solve for x
    x = 9,444,072.68/3,201.68
  6. Step 6: Final answer
    x = 2,949.73

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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.