Home / 3,211.88-4,819.85-1,264.04

Finding the Fourth Proportional to 3,211.88, 4,819.85 and 1,264.04

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Solution

The fourth proportional to 3,211.88, 4,819.85 and 1,264.04 is: 1,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.88 : 4,819.85 = 1,264.04 : x
  2. Step 2: Convert to fraction form
    3,211.88/4,819.85 = 1,264.04/x
  3. Step 3: Cross multiply
    3,211.88x = 4,819.85 × 1,264.04
  4. Step 4: Simplify right side
    3,211.88x = 6,092,452.77
  5. Step 5: Solve for x
    x = 6,092,452.77/3,211.88
  6. Step 6: Final answer
    x = 1,896.85

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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.