Home / 7,956.20-10,979.40-4,419.56

Finding the Fourth Proportional to 7,956.20, 10,979.40 and 4,419.56

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Solution

The fourth proportional to 7,956.20, 10,979.40 and 4,419.56 is: 6,098.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.20 : 10,979.40 = 4,419.56 : x
  2. Step 2: Convert to fraction form
    7,956.20/10,979.40 = 4,419.56/x
  3. Step 3: Cross multiply
    7,956.20x = 10,979.40 × 4,419.56
  4. Step 4: Simplify right side
    7,956.20x = 48,524,117.06
  5. Step 5: Solve for x
    x = 48,524,117.06/7,956.20
  6. Step 6: Final answer
    x = 6,098.91

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1.5x scale

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.