Home / 2,721.75-4,083.30-1,260.60

Finding the Fourth Proportional to 2,721.75, 4,083.30 and 1,260.60

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Solution

The fourth proportional to 2,721.75, 4,083.30 and 1,260.60 is: 1,891.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.75 : 4,083.30 = 1,260.60 : x
  2. Step 2: Convert to fraction form
    2,721.75/4,083.30 = 1,260.60/x
  3. Step 3: Cross multiply
    2,721.75x = 4,083.30 × 1,260.60
  4. Step 4: Simplify right side
    2,721.75x = 5,147,407.98
  5. Step 5: Solve for x
    x = 5,147,407.98/2,721.75
  6. Step 6: Final answer
    x = 1,891.21

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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.