Home / 3,882.80-5,358.30-2,311.04

Finding the Fourth Proportional to 3,882.80, 5,358.30 and 2,311.04

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Solution

The fourth proportional to 3,882.80, 5,358.30 and 2,311.04 is: 3,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.80 : 5,358.30 = 2,311.04 : x
  2. Step 2: Convert to fraction form
    3,882.80/5,358.30 = 2,311.04/x
  3. Step 3: Cross multiply
    3,882.80x = 5,358.30 × 2,311.04
  4. Step 4: Simplify right side
    3,882.80x = 12,383,245.63
  5. Step 5: Solve for x
    x = 12,383,245.63/3,882.80
  6. Step 6: Final answer
    x = 3,189.26

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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.