Home / 5,161.10-7,740.62-2,198.98

Finding the Fourth Proportional to 5,161.10, 7,740.62 and 2,198.98

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Solution

The fourth proportional to 5,161.10, 7,740.62 and 2,198.98 is: 3,298.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.10 : 7,740.62 = 2,198.98 : x
  2. Step 2: Convert to fraction form
    5,161.10/7,740.62 = 2,198.98/x
  3. Step 3: Cross multiply
    5,161.10x = 7,740.62 × 2,198.98
  4. Step 4: Simplify right side
    5,161.10x = 17,021,418.87
  5. Step 5: Solve for x
    x = 17,021,418.87/5,161.10
  6. Step 6: Final answer
    x = 3,298.02

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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.