Home / 2,811.92-3,879.19-1,632.35

Finding the Fourth Proportional to 2,811.92, 3,879.19 and 1,632.35

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Solution

The fourth proportional to 2,811.92, 3,879.19 and 1,632.35 is: 2,251.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.92 : 3,879.19 = 1,632.35 : x
  2. Step 2: Convert to fraction form
    2,811.92/3,879.19 = 1,632.35/x
  3. Step 3: Cross multiply
    2,811.92x = 3,879.19 × 1,632.35
  4. Step 4: Simplify right side
    2,811.92x = 6,332,207.53
  5. Step 5: Solve for x
    x = 6,332,207.53/2,811.92
  6. Step 6: Final answer
    x = 2,251.92

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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.