Home / 3,425.62-5,138.43-2,193.61

Finding the Fourth Proportional to 3,425.62, 5,138.43 and 2,193.61

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Solution

The fourth proportional to 3,425.62, 5,138.43 and 2,193.61 is: 3,290.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.62 : 5,138.43 = 2,193.61 : x
  2. Step 2: Convert to fraction form
    3,425.62/5,138.43 = 2,193.61/x
  3. Step 3: Cross multiply
    3,425.62x = 5,138.43 × 2,193.61
  4. Step 4: Simplify right side
    3,425.62x = 11,271,711.43
  5. Step 5: Solve for x
    x = 11,271,711.43/3,425.62
  6. Step 6: Final answer
    x = 3,290.42

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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.