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Finding the Fourth Proportional to 3,471.87, 4,791.15 and 1,899.96

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Solution

The fourth proportional to 3,471.87, 4,791.15 and 1,899.96 is: 2,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.87 : 4,791.15 = 1,899.96 : x
  2. Step 2: Convert to fraction form
    3,471.87/4,791.15 = 1,899.96/x
  3. Step 3: Cross multiply
    3,471.87x = 4,791.15 × 1,899.96
  4. Step 4: Simplify right side
    3,471.87x = 9,102,993.35
  5. Step 5: Solve for x
    x = 9,102,993.35/3,471.87
  6. Step 6: Final answer
    x = 2,621.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.