Home / 2,191.76-3,284.40-1,367.54

Finding the Fourth Proportional to 2,191.76, 3,284.40 and 1,367.54

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Solution

The fourth proportional to 2,191.76, 3,284.40 and 1,367.54 is: 2,049.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.76 : 3,284.40 = 1,367.54 : x
  2. Step 2: Convert to fraction form
    2,191.76/3,284.40 = 1,367.54/x
  3. Step 3: Cross multiply
    2,191.76x = 3,284.40 × 1,367.54
  4. Step 4: Simplify right side
    2,191.76x = 4,491,548.38
  5. Step 5: Solve for x
    x = 4,491,548.38/2,191.76
  6. Step 6: Final answer
    x = 2,049.29

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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.