Home / 1,840.30-2,757.61-1,375.90

Finding the Fourth Proportional to 1,840.30, 2,757.61 and 1,375.90

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Solution

The fourth proportional to 1,840.30, 2,757.61 and 1,375.90 is: 2,061.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.30 : 2,757.61 = 1,375.90 : x
  2. Step 2: Convert to fraction form
    1,840.30/2,757.61 = 1,375.90/x
  3. Step 3: Cross multiply
    1,840.30x = 2,757.61 × 1,375.90
  4. Step 4: Simplify right side
    1,840.30x = 3,794,195.60
  5. Step 5: Solve for x
    x = 3,794,195.60/1,840.30
  6. Step 6: Final answer
    x = 2,061.73

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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.