Home / 2,549.71-3,822.91-1,378.97

Finding the Fourth Proportional to 2,549.71, 3,822.91 and 1,378.97

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Solution

The fourth proportional to 2,549.71, 3,822.91 and 1,378.97 is: 2,067.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,549.71 : 3,822.91 = 1,378.97 : x
  2. Step 2: Convert to fraction form
    2,549.71/3,822.91 = 1,378.97/x
  3. Step 3: Cross multiply
    2,549.71x = 3,822.91 × 1,378.97
  4. Step 4: Simplify right side
    2,549.71x = 5,271,671.31
  5. Step 5: Solve for x
    x = 5,271,671.31/2,549.71
  6. Step 6: Final answer
    x = 2,067.56

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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.