Home / 3,179.28-4,768.76-1,863.76

Finding the Fourth Proportional to 3,179.28, 4,768.76 and 1,863.76

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Solution

The fourth proportional to 3,179.28, 4,768.76 and 1,863.76 is: 2,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.28 : 4,768.76 = 1,863.76 : x
  2. Step 2: Convert to fraction form
    3,179.28/4,768.76 = 1,863.76/x
  3. Step 3: Cross multiply
    3,179.28x = 4,768.76 × 1,863.76
  4. Step 4: Simplify right side
    3,179.28x = 8,887,824.14
  5. Step 5: Solve for x
    x = 8,887,824.14/3,179.28
  6. Step 6: Final answer
    x = 2,795.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.