Home / 3,425.70-5,138.55-2,550.90

Finding the Fourth Proportional to 3,425.70, 5,138.55 and 2,550.90

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Solution

The fourth proportional to 3,425.70, 5,138.55 and 2,550.90 is: 3,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.70 : 5,138.55 = 2,550.90 : x
  2. Step 2: Convert to fraction form
    3,425.70/5,138.55 = 2,550.90/x
  3. Step 3: Cross multiply
    3,425.70x = 5,138.55 × 2,550.90
  4. Step 4: Simplify right side
    3,425.70x = 13,107,927.20
  5. Step 5: Solve for x
    x = 13,107,927.20/3,425.70
  6. Step 6: Final answer
    x = 3,826.35

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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.