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Finding the Fourth Proportional to 7,944, 11,916 and 2,472

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Solution

The fourth proportional to 7,944, 11,916 and 2,472 is: 3,708

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944 : 11,916 = 2,472 : x
  2. Step 2: Convert to fraction form
    7,944/11,916 = 2,472/x
  3. Step 3: Cross multiply
    7,944x = 11,916 × 2,472
  4. Step 4: Simplify right side
    7,944x = 29,456,352
  5. Step 5: Solve for x
    x = 29,456,352/7,944
  6. Step 6: Final answer
    x = 3,708

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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.