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Finding the Fourth Proportional to 5,919.86, 8,881.25 and 1,759.85

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Solution

The fourth proportional to 5,919.86, 8,881.25 and 1,759.85 is: 2,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.86 : 8,881.25 = 1,759.85 : x
  2. Step 2: Convert to fraction form
    5,919.86/8,881.25 = 1,759.85/x
  3. Step 3: Cross multiply
    5,919.86x = 8,881.25 × 1,759.85
  4. Step 4: Simplify right side
    5,919.86x = 15,629,684.41
  5. Step 5: Solve for x
    x = 15,629,684.41/5,919.86
  6. Step 6: Final answer
    x = 2,640.21

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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.