Home / 7,951.35-11,919.72-2,753.58

Finding the Fourth Proportional to 7,951.35, 11,919.72 and 2,753.58

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Solution

The fourth proportional to 7,951.35, 11,919.72 and 2,753.58 is: 4,127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.35 : 11,919.72 = 2,753.58 : x
  2. Step 2: Convert to fraction form
    7,951.35/11,919.72 = 2,753.58/x
  3. Step 3: Cross multiply
    7,951.35x = 11,919.72 × 2,753.58
  4. Step 4: Simplify right side
    7,951.35x = 32,821,890.57
  5. Step 5: Solve for x
    x = 32,821,890.57/7,951.35
  6. Step 6: Final answer
    x = 4,127.84

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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.