Home / 2,687.20-4,028.96-1,453.84

Finding the Fourth Proportional to 2,687.20, 4,028.96 and 1,453.84

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Solution

The fourth proportional to 2,687.20, 4,028.96 and 1,453.84 is: 2,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.20 : 4,028.96 = 1,453.84 : x
  2. Step 2: Convert to fraction form
    2,687.20/4,028.96 = 1,453.84/x
  3. Step 3: Cross multiply
    2,687.20x = 4,028.96 × 1,453.84
  4. Step 4: Simplify right side
    2,687.20x = 5,857,463.21
  5. Step 5: Solve for x
    x = 5,857,463.21/2,687.20
  6. Step 6: Final answer
    x = 2,179.76

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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.