Home / 3,400.11-5,100.61-1,425.43

Finding the Fourth Proportional to 3,400.11, 5,100.61 and 1,425.43

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Solution

The fourth proportional to 3,400.11, 5,100.61 and 1,425.43 is: 2,138.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.11 : 5,100.61 = 1,425.43 : x
  2. Step 2: Convert to fraction form
    3,400.11/5,100.61 = 1,425.43/x
  3. Step 3: Cross multiply
    3,400.11x = 5,100.61 × 1,425.43
  4. Step 4: Simplify right side
    3,400.11x = 7,270,540.57
  5. Step 5: Solve for x
    x = 7,270,540.57/3,400.11
  6. Step 6: Final answer
    x = 2,138.33

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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.