Home / 2,687.75-4,034.14-1,456.13

Finding the Fourth Proportional to 2,687.75, 4,034.14 and 1,456.13

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Solution

The fourth proportional to 2,687.75, 4,034.14 and 1,456.13 is: 2,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.75 : 4,034.14 = 1,456.13 : x
  2. Step 2: Convert to fraction form
    2,687.75/4,034.14 = 1,456.13/x
  3. Step 3: Cross multiply
    2,687.75x = 4,034.14 × 1,456.13
  4. Step 4: Simplify right side
    2,687.75x = 5,874,216.03
  5. Step 5: Solve for x
    x = 5,874,216.03/2,687.75
  6. Step 6: Final answer
    x = 2,185.55

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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.