Home / 2,771.91-3,825.17-1,512.97

Finding the Fourth Proportional to 2,771.91, 3,825.17 and 1,512.97

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Solution

The fourth proportional to 2,771.91, 3,825.17 and 1,512.97 is: 2,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.91 : 3,825.17 = 1,512.97 : x
  2. Step 2: Convert to fraction form
    2,771.91/3,825.17 = 1,512.97/x
  3. Step 3: Cross multiply
    2,771.91x = 3,825.17 × 1,512.97
  4. Step 4: Simplify right side
    2,771.91x = 5,787,363.67
  5. Step 5: Solve for x
    x = 5,787,363.67/2,771.91
  6. Step 6: Final answer
    x = 2,087.86

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1.5x scale

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.