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Finding the Fourth Proportional to 3,863.86, 5,795.55 and 2,690.44

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Solution

The fourth proportional to 3,863.86, 5,795.55 and 2,690.44 is: 4,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.86 : 5,795.55 = 2,690.44 : x
  2. Step 2: Convert to fraction form
    3,863.86/5,795.55 = 2,690.44/x
  3. Step 3: Cross multiply
    3,863.86x = 5,795.55 × 2,690.44
  4. Step 4: Simplify right side
    3,863.86x = 15,592,579.54
  5. Step 5: Solve for x
    x = 15,592,579.54/3,863.86
  6. Step 6: Final answer
    x = 4,035.49

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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.