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Finding the Fourth Proportional to 7,959.04, 11,940.80 and 2,765.44

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Solution

The fourth proportional to 7,959.04, 11,940.80 and 2,765.44 is: 4,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.04 : 11,940.80 = 2,765.44 : x
  2. Step 2: Convert to fraction form
    7,959.04/11,940.80 = 2,765.44/x
  3. Step 3: Cross multiply
    7,959.04x = 11,940.80 × 2,765.44
  4. Step 4: Simplify right side
    7,959.04x = 33,021,565.95
  5. Step 5: Solve for x
    x = 33,021,565.95/7,959.04
  6. Step 6: Final answer
    x = 4,148.94

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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.