Home / 7,911.56-11,863.19-3,228.95

Finding the Fourth Proportional to 7,911.56, 11,863.19 and 3,228.95

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Solution

The fourth proportional to 7,911.56, 11,863.19 and 3,228.95 is: 4,841.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.56 : 11,863.19 = 3,228.95 : x
  2. Step 2: Convert to fraction form
    7,911.56/11,863.19 = 3,228.95/x
  3. Step 3: Cross multiply
    7,911.56x = 11,863.19 × 3,228.95
  4. Step 4: Simplify right side
    7,911.56x = 38,305,685.08
  5. Step 5: Solve for x
    x = 38,305,685.08/7,911.56
  6. Step 6: Final answer
    x = 4,841.73

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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.