Home / 7,890.86-11,834.27-2,342.92

Finding the Fourth Proportional to 7,890.86, 11,834.27 and 2,342.92

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Solution

The fourth proportional to 7,890.86, 11,834.27 and 2,342.92 is: 3,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.86 : 11,834.27 = 2,342.92 : x
  2. Step 2: Convert to fraction form
    7,890.86/11,834.27 = 2,342.92/x
  3. Step 3: Cross multiply
    7,890.86x = 11,834.27 × 2,342.92
  4. Step 4: Simplify right side
    7,890.86x = 27,726,757.48
  5. Step 5: Solve for x
    x = 27,726,757.48/7,890.86
  6. Step 6: Final answer
    x = 3,513.78

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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.