Home / 2,530.76-3,791.26-1,431.76

Finding the Fourth Proportional to 2,530.76, 3,791.26 and 1,431.76

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Solution

The fourth proportional to 2,530.76, 3,791.26 and 1,431.76 is: 2,144.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,530.76 : 3,791.26 = 1,431.76 : x
  2. Step 2: Convert to fraction form
    2,530.76/3,791.26 = 1,431.76/x
  3. Step 3: Cross multiply
    2,530.76x = 3,791.26 × 1,431.76
  4. Step 4: Simplify right side
    2,530.76x = 5,428,174.42
  5. Step 5: Solve for x
    x = 5,428,174.42/2,530.76
  6. Step 6: Final answer
    x = 2,144.88

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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.