Home / 2,229.12-3,076.38-1,345.41

Finding the Fourth Proportional to 2,229.12, 3,076.38 and 1,345.41

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Solution

The fourth proportional to 2,229.12, 3,076.38 and 1,345.41 is: 1,856.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.12 : 3,076.38 = 1,345.41 : x
  2. Step 2: Convert to fraction form
    2,229.12/3,076.38 = 1,345.41/x
  3. Step 3: Cross multiply
    2,229.12x = 3,076.38 × 1,345.41
  4. Step 4: Simplify right side
    2,229.12x = 4,138,992.42
  5. Step 5: Solve for x
    x = 4,138,992.42/2,229.12
  6. Step 6: Final answer
    x = 1,856.78

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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.