Home / 3,021.41-4,531.22-1,172.09

Finding the Fourth Proportional to 3,021.41, 4,531.22 and 1,172.09

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Solution

The fourth proportional to 3,021.41, 4,531.22 and 1,172.09 is: 1,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.41 : 4,531.22 = 1,172.09 : x
  2. Step 2: Convert to fraction form
    3,021.41/4,531.22 = 1,172.09/x
  3. Step 3: Cross multiply
    3,021.41x = 4,531.22 × 1,172.09
  4. Step 4: Simplify right side
    3,021.41x = 5,310,988.62
  5. Step 5: Solve for x
    x = 5,310,988.62/3,021.41
  6. Step 6: Final answer
    x = 1,757.78

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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.