Home / 2,512.26-3,763.98-1,339.78

Finding the Fourth Proportional to 2,512.26, 3,763.98 and 1,339.78

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Solution

The fourth proportional to 2,512.26, 3,763.98 and 1,339.78 is: 2,007.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.26 : 3,763.98 = 1,339.78 : x
  2. Step 2: Convert to fraction form
    2,512.26/3,763.98 = 1,339.78/x
  3. Step 3: Cross multiply
    2,512.26x = 3,763.98 × 1,339.78
  4. Step 4: Simplify right side
    2,512.26x = 5,042,905.12
  5. Step 5: Solve for x
    x = 5,042,905.12/2,512.26
  6. Step 6: Final answer
    x = 2,007.32

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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.