Home / 7,951.78-11,927.37-3,270.49

Finding the Fourth Proportional to 7,951.78, 11,927.37 and 3,270.49

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Solution

The fourth proportional to 7,951.78, 11,927.37 and 3,270.49 is: 4,905.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.78 : 11,927.37 = 3,270.49 : x
  2. Step 2: Convert to fraction form
    7,951.78/11,927.37 = 3,270.49/x
  3. Step 3: Cross multiply
    7,951.78x = 11,927.37 × 3,270.49
  4. Step 4: Simplify right side
    7,951.78x = 39,008,344.31
  5. Step 5: Solve for x
    x = 39,008,344.31/7,951.78
  6. Step 6: Final answer
    x = 4,905.61

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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.