Home / 2,687.26-4,027.20-2,028.58

Finding the Fourth Proportional to 2,687.26, 4,027.20 and 2,028.58

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Solution

The fourth proportional to 2,687.26, 4,027.20 and 2,028.58 is: 3,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.26 : 4,027.20 = 2,028.58 : x
  2. Step 2: Convert to fraction form
    2,687.26/4,027.20 = 2,028.58/x
  3. Step 3: Cross multiply
    2,687.26x = 4,027.20 × 2,028.58
  4. Step 4: Simplify right side
    2,687.26x = 8,169,497.38
  5. Step 5: Solve for x
    x = 8,169,497.38/2,687.26
  6. Step 6: Final answer
    x = 3,040.08

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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.