Home / 3,909.80-5,863.82-1,136.44

Finding the Fourth Proportional to 3,909.80, 5,863.82 and 1,136.44

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Solution

The fourth proportional to 3,909.80, 5,863.82 and 1,136.44 is: 1,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.80 : 5,863.82 = 1,136.44 : x
  2. Step 2: Convert to fraction form
    3,909.80/5,863.82 = 1,136.44/x
  3. Step 3: Cross multiply
    3,909.80x = 5,863.82 × 1,136.44
  4. Step 4: Simplify right side
    3,909.80x = 6,663,879.60
  5. Step 5: Solve for x
    x = 6,663,879.60/3,909.80
  6. Step 6: Final answer
    x = 1,704.40

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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.