Home / 2,745.28-4,119.27-1,284.54

Finding the Fourth Proportional to 2,745.28, 4,119.27 and 1,284.54

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Solution

The fourth proportional to 2,745.28, 4,119.27 and 1,284.54 is: 1,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.28 : 4,119.27 = 1,284.54 : x
  2. Step 2: Convert to fraction form
    2,745.28/4,119.27 = 1,284.54/x
  3. Step 3: Cross multiply
    2,745.28x = 4,119.27 × 1,284.54
  4. Step 4: Simplify right side
    2,745.28x = 5,291,367.09
  5. Step 5: Solve for x
    x = 5,291,367.09/2,745.28
  6. Step 6: Final answer
    x = 1,927.44

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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.