Home / 2,112.67-3,170.94-1,073.39

Finding the Fourth Proportional to 2,112.67, 3,170.94 and 1,073.39

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Solution

The fourth proportional to 2,112.67, 3,170.94 and 1,073.39 is: 1,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.67 : 3,170.94 = 1,073.39 : x
  2. Step 2: Convert to fraction form
    2,112.67/3,170.94 = 1,073.39/x
  3. Step 3: Cross multiply
    2,112.67x = 3,170.94 × 1,073.39
  4. Step 4: Simplify right side
    2,112.67x = 3,403,655.29
  5. Step 5: Solve for x
    x = 3,403,655.29/2,112.67
  6. Step 6: Final answer
    x = 1,611.07

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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.