Home / 1,631.27-2,251.26-923.11

Finding the Fourth Proportional to 1,631.27, 2,251.26 and 923.11

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Solution

The fourth proportional to 1,631.27, 2,251.26 and 923.11 is: 1,273.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.27 : 2,251.26 = 923.11 : x
  2. Step 2: Convert to fraction form
    1,631.27/2,251.26 = 923.11/x
  3. Step 3: Cross multiply
    1,631.27x = 2,251.26 × 923.11
  4. Step 4: Simplify right side
    1,631.27x = 2,078,163.43
  5. Step 5: Solve for x
    x = 2,078,163.43/1,631.27
  6. Step 6: Final answer
    x = 1,273.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.