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Finding the Fourth Proportional to 7,862.92, 11,791.47 and 2,314.82

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Solution

The fourth proportional to 7,862.92, 11,791.47 and 2,314.82 is: 3,471.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.92 : 11,791.47 = 2,314.82 : x
  2. Step 2: Convert to fraction form
    7,862.92/11,791.47 = 2,314.82/x
  3. Step 3: Cross multiply
    7,862.92x = 11,791.47 × 2,314.82
  4. Step 4: Simplify right side
    7,862.92x = 27,295,130.59
  5. Step 5: Solve for x
    x = 27,295,130.59/7,862.92
  6. Step 6: Final answer
    x = 3,471.37

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1.5x scale

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.