Home / 7,839.52-11,751.99-2,641.75

Finding the Fourth Proportional to 7,839.52, 11,751.99 and 2,641.75

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Solution

The fourth proportional to 7,839.52, 11,751.99 and 2,641.75 is: 3,960.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.52 : 11,751.99 = 2,641.75 : x
  2. Step 2: Convert to fraction form
    7,839.52/11,751.99 = 2,641.75/x
  3. Step 3: Cross multiply
    7,839.52x = 11,751.99 × 2,641.75
  4. Step 4: Simplify right side
    7,839.52x = 31,045,819.58
  5. Step 5: Solve for x
    x = 31,045,819.58/7,839.52
  6. Step 6: Final answer
    x = 3,960.17

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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.