Home / 2,643.73-3,960.20-1,252.85

Finding the Fourth Proportional to 2,643.73, 3,960.20 and 1,252.85

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Solution

The fourth proportional to 2,643.73, 3,960.20 and 1,252.85 is: 1,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.73 : 3,960.20 = 1,252.85 : x
  2. Step 2: Convert to fraction form
    2,643.73/3,960.20 = 1,252.85/x
  3. Step 3: Cross multiply
    2,643.73x = 3,960.20 × 1,252.85
  4. Step 4: Simplify right side
    2,643.73x = 4,961,536.57
  5. Step 5: Solve for x
    x = 4,961,536.57/2,643.73
  6. Step 6: Final answer
    x = 1,876.72

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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.