Home / 7,680.98-11,521.78-3,295.44

Finding the Fourth Proportional to 7,680.98, 11,521.78 and 3,295.44

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Solution

The fourth proportional to 7,680.98, 11,521.78 and 3,295.44 is: 4,943.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.98 : 11,521.78 = 3,295.44 : x
  2. Step 2: Convert to fraction form
    7,680.98/11,521.78 = 3,295.44/x
  3. Step 3: Cross multiply
    7,680.98x = 11,521.78 × 3,295.44
  4. Step 4: Simplify right side
    7,680.98x = 37,969,334.68
  5. Step 5: Solve for x
    x = 37,969,334.68/7,680.98
  6. Step 6: Final answer
    x = 4,943.29

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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.