Home / 2,689.75-4,036.25-1,150.75

Finding the Fourth Proportional to 2,689.75, 4,036.25 and 1,150.75

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Solution

The fourth proportional to 2,689.75, 4,036.25 and 1,150.75 is: 1,726.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.75 : 4,036.25 = 1,150.75 : x
  2. Step 2: Convert to fraction form
    2,689.75/4,036.25 = 1,150.75/x
  3. Step 3: Cross multiply
    2,689.75x = 4,036.25 × 1,150.75
  4. Step 4: Simplify right side
    2,689.75x = 4,644,714.69
  5. Step 5: Solve for x
    x = 4,644,714.69/2,689.75
  6. Step 6: Final answer
    x = 1,726.82

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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.