Home / 2,512.23-3,767.89-1,125.31

Finding the Fourth Proportional to 2,512.23, 3,767.89 and 1,125.31

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Solution

The fourth proportional to 2,512.23, 3,767.89 and 1,125.31 is: 1,687.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.23 : 3,767.89 = 1,125.31 : x
  2. Step 2: Convert to fraction form
    2,512.23/3,767.89 = 1,125.31/x
  3. Step 3: Cross multiply
    2,512.23x = 3,767.89 × 1,125.31
  4. Step 4: Simplify right side
    2,512.23x = 4,240,044.30
  5. Step 5: Solve for x
    x = 4,240,044.30/2,512.23
  6. Step 6: Final answer
    x = 1,687.76

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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.