Home / 3,882.54-5,359.05-2,311.68

Finding the Fourth Proportional to 3,882.54, 5,359.05 and 2,311.68

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Solution

The fourth proportional to 3,882.54, 5,359.05 and 2,311.68 is: 3,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.54 : 5,359.05 = 2,311.68 : x
  2. Step 2: Convert to fraction form
    3,882.54/5,359.05 = 2,311.68/x
  3. Step 3: Cross multiply
    3,882.54x = 5,359.05 × 2,311.68
  4. Step 4: Simplify right side
    3,882.54x = 12,388,408.70
  5. Step 5: Solve for x
    x = 12,388,408.70/3,882.54
  6. Step 6: Final answer
    x = 3,190.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.