Home / 7,839.92-11,758.97-2,909.66

Finding the Fourth Proportional to 7,839.92, 11,758.97 and 2,909.66

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Solution

The fourth proportional to 7,839.92, 11,758.97 and 2,909.66 is: 4,364.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.92 : 11,758.97 = 2,909.66 : x
  2. Step 2: Convert to fraction form
    7,839.92/11,758.97 = 2,909.66/x
  3. Step 3: Cross multiply
    7,839.92x = 11,758.97 × 2,909.66
  4. Step 4: Simplify right side
    7,839.92x = 34,214,553.13
  5. Step 5: Solve for x
    x = 34,214,553.13/7,839.92
  6. Step 6: Final answer
    x = 4,364.14

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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.