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Finding the Fourth Proportional to 7,956.34, 10,979.73 and 4,419.88

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Solution

The fourth proportional to 7,956.34, 10,979.73 and 4,419.88 is: 6,099.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.34 : 10,979.73 = 4,419.88 : x
  2. Step 2: Convert to fraction form
    7,956.34/10,979.73 = 4,419.88/x
  3. Step 3: Cross multiply
    7,956.34x = 10,979.73 × 4,419.88
  4. Step 4: Simplify right side
    7,956.34x = 48,529,061.58
  5. Step 5: Solve for x
    x = 48,529,061.58/7,956.34
  6. Step 6: Final answer
    x = 6,099.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.