Home / 3,397.21-5,092.77-2,161.15

Finding the Fourth Proportional to 3,397.21, 5,092.77 and 2,161.15

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Solution

The fourth proportional to 3,397.21, 5,092.77 and 2,161.15 is: 3,239.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.21 : 5,092.77 = 2,161.15 : x
  2. Step 2: Convert to fraction form
    3,397.21/5,092.77 = 2,161.15/x
  3. Step 3: Cross multiply
    3,397.21x = 5,092.77 × 2,161.15
  4. Step 4: Simplify right side
    3,397.21x = 11,006,239.89
  5. Step 5: Solve for x
    x = 11,006,239.89/3,397.21
  6. Step 6: Final answer
    x = 3,239.79

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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.