Home / 2,687.08-4,028.46-1,149.16

Finding the Fourth Proportional to 2,687.08, 4,028.46 and 1,149.16

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Solution

The fourth proportional to 2,687.08, 4,028.46 and 1,149.16 is: 1,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.08 : 4,028.46 = 1,149.16 : x
  2. Step 2: Convert to fraction form
    2,687.08/4,028.46 = 1,149.16/x
  3. Step 3: Cross multiply
    2,687.08x = 4,028.46 × 1,149.16
  4. Step 4: Simplify right side
    2,687.08x = 4,629,345.09
  5. Step 5: Solve for x
    x = 4,629,345.09/2,687.08
  6. Step 6: Final answer
    x = 1,722.82

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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.