Home / 4,091.82-6,136.43-1,317.90

Finding the Fourth Proportional to 4,091.82, 6,136.43 and 1,317.90

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Solution

The fourth proportional to 4,091.82, 6,136.43 and 1,317.90 is: 1,976.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.82 : 6,136.43 = 1,317.90 : x
  2. Step 2: Convert to fraction form
    4,091.82/6,136.43 = 1,317.90/x
  3. Step 3: Cross multiply
    4,091.82x = 6,136.43 × 1,317.90
  4. Step 4: Simplify right side
    4,091.82x = 8,087,176.86
  5. Step 5: Solve for x
    x = 8,087,176.86/4,091.82
  6. Step 6: Final answer
    x = 1,976.43

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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.