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Finding the Fourth Proportional to 7,956.84, 11,930.35 and 2,691.35

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Solution

The fourth proportional to 7,956.84, 11,930.35 and 2,691.35 is: 4,035.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.84 : 11,930.35 = 2,691.35 : x
  2. Step 2: Convert to fraction form
    7,956.84/11,930.35 = 2,691.35/x
  3. Step 3: Cross multiply
    7,956.84x = 11,930.35 × 2,691.35
  4. Step 4: Simplify right side
    7,956.84x = 32,108,747.47
  5. Step 5: Solve for x
    x = 32,108,747.47/7,956.84
  6. Step 6: Final answer
    x = 4,035.36

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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.