Home / 3,125.78-4,315.30-2,132.52

Finding the Fourth Proportional to 3,125.78, 4,315.30 and 2,132.52

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Solution

The fourth proportional to 3,125.78, 4,315.30 and 2,132.52 is: 2,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.78 : 4,315.30 = 2,132.52 : x
  2. Step 2: Convert to fraction form
    3,125.78/4,315.30 = 2,132.52/x
  3. Step 3: Cross multiply
    3,125.78x = 4,315.30 × 2,132.52
  4. Step 4: Simplify right side
    3,125.78x = 9,202,463.56
  5. Step 5: Solve for x
    x = 9,202,463.56/3,125.78
  6. Step 6: Final answer
    x = 2,944.05

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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.