Home / 3,169.70-4,755.36-1,221.38

Finding the Fourth Proportional to 3,169.70, 4,755.36 and 1,221.38

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Solution

The fourth proportional to 3,169.70, 4,755.36 and 1,221.38 is: 1,832.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.70 : 4,755.36 = 1,221.38 : x
  2. Step 2: Convert to fraction form
    3,169.70/4,755.36 = 1,221.38/x
  3. Step 3: Cross multiply
    3,169.70x = 4,755.36 × 1,221.38
  4. Step 4: Simplify right side
    3,169.70x = 5,808,101.60
  5. Step 5: Solve for x
    x = 5,808,101.60/3,169.70
  6. Step 6: Final answer
    x = 1,832.38

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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.