Home / 2,119.11-3,177.59-1,241.89

Finding the Fourth Proportional to 2,119.11, 3,177.59 and 1,241.89

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Solution

The fourth proportional to 2,119.11, 3,177.59 and 1,241.89 is: 1,862.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.11 : 3,177.59 = 1,241.89 : x
  2. Step 2: Convert to fraction form
    2,119.11/3,177.59 = 1,241.89/x
  3. Step 3: Cross multiply
    2,119.11x = 3,177.59 × 1,241.89
  4. Step 4: Simplify right side
    2,119.11x = 3,946,217.25
  5. Step 5: Solve for x
    x = 3,946,217.25/2,119.11
  6. Step 6: Final answer
    x = 1,862.21

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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.