Home / 2,561.97-3,840.53-1,261.92

Finding the Fourth Proportional to 2,561.97, 3,840.53 and 1,261.92

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Solution

The fourth proportional to 2,561.97, 3,840.53 and 1,261.92 is: 1,891.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.97 : 3,840.53 = 1,261.92 : x
  2. Step 2: Convert to fraction form
    2,561.97/3,840.53 = 1,261.92/x
  3. Step 3: Cross multiply
    2,561.97x = 3,840.53 × 1,261.92
  4. Step 4: Simplify right side
    2,561.97x = 4,846,435.31
  5. Step 5: Solve for x
    x = 4,846,435.31/2,561.97
  6. Step 6: Final answer
    x = 1,891.68

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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.