Home / 2,758.20-4,132.09-2,138.87

Finding the Fourth Proportional to 2,758.20, 4,132.09 and 2,138.87

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Solution

The fourth proportional to 2,758.20, 4,132.09 and 2,138.87 is: 3,204.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.20 : 4,132.09 = 2,138.87 : x
  2. Step 2: Convert to fraction form
    2,758.20/4,132.09 = 2,138.87/x
  3. Step 3: Cross multiply
    2,758.20x = 4,132.09 × 2,138.87
  4. Step 4: Simplify right side
    2,758.20x = 8,838,008.32
  5. Step 5: Solve for x
    x = 8,838,008.32/2,758.20
  6. Step 6: Final answer
    x = 3,204.27

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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.