Home / 3,899.28-5,380.62-2,306.52

Finding the Fourth Proportional to 3,899.28, 5,380.62 and 2,306.52

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Solution

The fourth proportional to 3,899.28, 5,380.62 and 2,306.52 is: 3,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.28 : 5,380.62 = 2,306.52 : x
  2. Step 2: Convert to fraction form
    3,899.28/5,380.62 = 2,306.52/x
  3. Step 3: Cross multiply
    3,899.28x = 5,380.62 × 2,306.52
  4. Step 4: Simplify right side
    3,899.28x = 12,410,507.64
  5. Step 5: Solve for x
    x = 12,410,507.64/3,899.28
  6. Step 6: Final answer
    x = 3,182.77

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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.