Home / 7,221.76-10,833.92-2,718.72

Finding the Fourth Proportional to 7,221.76, 10,833.92 and 2,718.72

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Solution

The fourth proportional to 7,221.76, 10,833.92 and 2,718.72 is: 4,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.76 : 10,833.92 = 2,718.72 : x
  2. Step 2: Convert to fraction form
    7,221.76/10,833.92 = 2,718.72/x
  3. Step 3: Cross multiply
    7,221.76x = 10,833.92 × 2,718.72
  4. Step 4: Simplify right side
    7,221.76x = 29,454,394.98
  5. Step 5: Solve for x
    x = 29,454,394.98/7,221.76
  6. Step 6: Final answer
    x = 4,078.56

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1.5x scale

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.