Home / 2,542.97-3,811.84-1,721.32

Finding the Fourth Proportional to 2,542.97, 3,811.84 and 1,721.32

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Solution

The fourth proportional to 2,542.97, 3,811.84 and 1,721.32 is: 2,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.97 : 3,811.84 = 1,721.32 : x
  2. Step 2: Convert to fraction form
    2,542.97/3,811.84 = 1,721.32/x
  3. Step 3: Cross multiply
    2,542.97x = 3,811.84 × 1,721.32
  4. Step 4: Simplify right side
    2,542.97x = 6,561,396.43
  5. Step 5: Solve for x
    x = 6,561,396.43/2,542.97
  6. Step 6: Final answer
    x = 2,580.21

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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.