Home / 7,955.89-11,932.91-2,112.95

Finding the Fourth Proportional to 7,955.89, 11,932.91 and 2,112.95

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Solution

The fourth proportional to 7,955.89, 11,932.91 and 2,112.95 is: 3,169.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.89 : 11,932.91 = 2,112.95 : x
  2. Step 2: Convert to fraction form
    7,955.89/11,932.91 = 2,112.95/x
  3. Step 3: Cross multiply
    7,955.89x = 11,932.91 × 2,112.95
  4. Step 4: Simplify right side
    7,955.89x = 25,213,631.62
  5. Step 5: Solve for x
    x = 25,213,631.62/7,955.89
  6. Step 6: Final answer
    x = 3,169.18

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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.