Home / 7,894.09-11,839.92-2,698.75

Finding the Fourth Proportional to 7,894.09, 11,839.92 and 2,698.75

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Solution

The fourth proportional to 7,894.09, 11,839.92 and 2,698.75 is: 4,047.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894.09 : 11,839.92 = 2,698.75 : x
  2. Step 2: Convert to fraction form
    7,894.09/11,839.92 = 2,698.75/x
  3. Step 3: Cross multiply
    7,894.09x = 11,839.92 × 2,698.75
  4. Step 4: Simplify right side
    7,894.09x = 31,952,984.10
  5. Step 5: Solve for x
    x = 31,952,984.10/7,894.09
  6. Step 6: Final answer
    x = 4,047.71

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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.