Home / 7,924.28-11,885.51-2,081.35

Finding the Fourth Proportional to 7,924.28, 11,885.51 and 2,081.35

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Solution

The fourth proportional to 7,924.28, 11,885.51 and 2,081.35 is: 3,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924.28 : 11,885.51 = 2,081.35 : x
  2. Step 2: Convert to fraction form
    7,924.28/11,885.51 = 2,081.35/x
  3. Step 3: Cross multiply
    7,924.28x = 11,885.51 × 2,081.35
  4. Step 4: Simplify right side
    7,924.28x = 24,737,906.24
  5. Step 5: Solve for x
    x = 24,737,906.24/7,924.28
  6. Step 6: Final answer
    x = 3,121.79

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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.