Home / 7,862.13-11,791.31-2,313.97

Finding the Fourth Proportional to 7,862.13, 11,791.31 and 2,313.97

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Solution

The fourth proportional to 7,862.13, 11,791.31 and 2,313.97 is: 3,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.13 : 11,791.31 = 2,313.97 : x
  2. Step 2: Convert to fraction form
    7,862.13/11,791.31 = 2,313.97/x
  3. Step 3: Cross multiply
    7,862.13x = 11,791.31 × 2,313.97
  4. Step 4: Simplify right side
    7,862.13x = 27,284,696.55
  5. Step 5: Solve for x
    x = 27,284,696.55/7,862.13
  6. Step 6: Final answer
    x = 3,470.39

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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.