Home / 7,956.35-10,979.45-4,419.78

Finding the Fourth Proportional to 7,956.35, 10,979.45 and 4,419.78

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Solution

The fourth proportional to 7,956.35, 10,979.45 and 4,419.78 is: 6,099.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.35 : 10,979.45 = 4,419.78 : x
  2. Step 2: Convert to fraction form
    7,956.35/10,979.45 = 4,419.78/x
  3. Step 3: Cross multiply
    7,956.35x = 10,979.45 × 4,419.78
  4. Step 4: Simplify right side
    7,956.35x = 48,526,753.52
  5. Step 5: Solve for x
    x = 48,526,753.52/7,956.35
  6. Step 6: Final answer
    x = 6,099.12

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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.