Home / 3,912.03-5,869.36-1,279.66

Finding the Fourth Proportional to 3,912.03, 5,869.36 and 1,279.66

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Solution

The fourth proportional to 3,912.03, 5,869.36 and 1,279.66 is: 1,919.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.03 : 5,869.36 = 1,279.66 : x
  2. Step 2: Convert to fraction form
    3,912.03/5,869.36 = 1,279.66/x
  3. Step 3: Cross multiply
    3,912.03x = 5,869.36 × 1,279.66
  4. Step 4: Simplify right side
    3,912.03x = 7,510,767.35
  5. Step 5: Solve for x
    x = 7,510,767.35/3,912.03
  6. Step 6: Final answer
    x = 1,919.92

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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.