Home / 2,119.89-3,177.98-732.27

Finding the Fourth Proportional to 2,119.89, 3,177.98 and 732.27

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Solution

The fourth proportional to 2,119.89, 3,177.98 and 732.27 is: 1,097.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.89 : 3,177.98 = 732.27 : x
  2. Step 2: Convert to fraction form
    2,119.89/3,177.98 = 732.27/x
  3. Step 3: Cross multiply
    2,119.89x = 3,177.98 × 732.27
  4. Step 4: Simplify right side
    2,119.89x = 2,327,135.75
  5. Step 5: Solve for x
    x = 2,327,135.75/2,119.89
  6. Step 6: Final answer
    x = 1,097.76

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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.