Home / 3,998-5,520.62-2,508.42

Finding the Fourth Proportional to 3,998, 5,520.62 and 2,508.42

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Solution

The fourth proportional to 3,998, 5,520.62 and 2,508.42 is: 3,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998 : 5,520.62 = 2,508.42 : x
  2. Step 2: Convert to fraction form
    3,998/5,520.62 = 2,508.42/x
  3. Step 3: Cross multiply
    3,998x = 5,520.62 × 2,508.42
  4. Step 4: Simplify right side
    3,998x = 13,848,033.62
  5. Step 5: Solve for x
    x = 13,848,033.62/3,998
  6. Step 6: Final answer
    x = 3,463.74

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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.