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Finding the Fourth Proportional to 3,898.86, 5,850.45 and 2,860.98

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Solution

The fourth proportional to 3,898.86, 5,850.45 and 2,860.98 is: 4,293.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.86 : 5,850.45 = 2,860.98 : x
  2. Step 2: Convert to fraction form
    3,898.86/5,850.45 = 2,860.98/x
  3. Step 3: Cross multiply
    3,898.86x = 5,850.45 × 2,860.98
  4. Step 4: Simplify right side
    3,898.86x = 16,738,020.44
  5. Step 5: Solve for x
    x = 16,738,020.44/3,898.86
  6. Step 6: Final answer
    x = 4,293.06

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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.