Home / 7,974.35-11,961.52-2,709.91

Finding the Fourth Proportional to 7,974.35, 11,961.52 and 2,709.91

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Solution

The fourth proportional to 7,974.35, 11,961.52 and 2,709.91 is: 4,064.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.35 : 11,961.52 = 2,709.91 : x
  2. Step 2: Convert to fraction form
    7,974.35/11,961.52 = 2,709.91/x
  3. Step 3: Cross multiply
    7,974.35x = 11,961.52 × 2,709.91
  4. Step 4: Simplify right side
    7,974.35x = 32,414,598.80
  5. Step 5: Solve for x
    x = 32,414,598.80/7,974.35
  6. Step 6: Final answer
    x = 4,064.86

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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.