Home / 3,425.39-5,139.45-2,039.38

Finding the Fourth Proportional to 3,425.39, 5,139.45 and 2,039.38

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Solution

The fourth proportional to 3,425.39, 5,139.45 and 2,039.38 is: 3,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.39 : 5,139.45 = 2,039.38 : x
  2. Step 2: Convert to fraction form
    3,425.39/5,139.45 = 2,039.38/x
  3. Step 3: Cross multiply
    3,425.39x = 5,139.45 × 2,039.38
  4. Step 4: Simplify right side
    3,425.39x = 10,481,278.69
  5. Step 5: Solve for x
    x = 10,481,278.69/3,425.39
  6. Step 6: Final answer
    x = 3,059.88

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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.