Home / 7,882.40-11,823.78-2,951.12

Finding the Fourth Proportional to 7,882.40, 11,823.78 and 2,951.12

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Solution

The fourth proportional to 7,882.40, 11,823.78 and 2,951.12 is: 4,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.40 : 11,823.78 = 2,951.12 : x
  2. Step 2: Convert to fraction form
    7,882.40/11,823.78 = 2,951.12/x
  3. Step 3: Cross multiply
    7,882.40x = 11,823.78 × 2,951.12
  4. Step 4: Simplify right side
    7,882.40x = 34,893,393.63
  5. Step 5: Solve for x
    x = 34,893,393.63/7,882.40
  6. Step 6: Final answer
    x = 4,426.75

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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.