Home / 2,313.11-3,469.31-851.92

Finding the Fourth Proportional to 2,313.11, 3,469.31 and 851.92

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Solution

The fourth proportional to 2,313.11, 3,469.31 and 851.92 is: 1,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.11 : 3,469.31 = 851.92 : x
  2. Step 2: Convert to fraction form
    2,313.11/3,469.31 = 851.92/x
  3. Step 3: Cross multiply
    2,313.11x = 3,469.31 × 851.92
  4. Step 4: Simplify right side
    2,313.11x = 2,955,557.23
  5. Step 5: Solve for x
    x = 2,955,557.23/2,313.11
  6. Step 6: Final answer
    x = 1,277.74

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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.