Home / 7,182.46-10,772.82-1,917.86

Finding the Fourth Proportional to 7,182.46, 10,772.82 and 1,917.86

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Solution

The fourth proportional to 7,182.46, 10,772.82 and 1,917.86 is: 2,876.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.46 : 10,772.82 = 1,917.86 : x
  2. Step 2: Convert to fraction form
    7,182.46/10,772.82 = 1,917.86/x
  3. Step 3: Cross multiply
    7,182.46x = 10,772.82 × 1,917.86
  4. Step 4: Simplify right side
    7,182.46x = 20,660,760.57
  5. Step 5: Solve for x
    x = 20,660,760.57/7,182.46
  6. Step 6: Final answer
    x = 2,876.56

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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.