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Finding the Fourth Proportional to 7,906.76, 11,852.04 and 2,972.96

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Solution

The fourth proportional to 7,906.76, 11,852.04 and 2,972.96 is: 4,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.76 : 11,852.04 = 2,972.96 : x
  2. Step 2: Convert to fraction form
    7,906.76/11,852.04 = 2,972.96/x
  3. Step 3: Cross multiply
    7,906.76x = 11,852.04 × 2,972.96
  4. Step 4: Simplify right side
    7,906.76x = 35,235,640.84
  5. Step 5: Solve for x
    x = 35,235,640.84/7,906.76
  6. Step 6: Final answer
    x = 4,456.39

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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.