Home / 3,171.14-4,755.49-1,090.75

Finding the Fourth Proportional to 3,171.14, 4,755.49 and 1,090.75

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Solution

The fourth proportional to 3,171.14, 4,755.49 and 1,090.75 is: 1,635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.14 : 4,755.49 = 1,090.75 : x
  2. Step 2: Convert to fraction form
    3,171.14/4,755.49 = 1,090.75/x
  3. Step 3: Cross multiply
    3,171.14x = 4,755.49 × 1,090.75
  4. Step 4: Simplify right side
    3,171.14x = 5,187,050.72
  5. Step 5: Solve for x
    x = 5,187,050.72/3,171.14
  6. Step 6: Final answer
    x = 1,635.71

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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.