Home / 3,328.75-4,992.18-1,378.54

Finding the Fourth Proportional to 3,328.75, 4,992.18 and 1,378.54

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Solution

The fourth proportional to 3,328.75, 4,992.18 and 1,378.54 is: 2,067.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.75 : 4,992.18 = 1,378.54 : x
  2. Step 2: Convert to fraction form
    3,328.75/4,992.18 = 1,378.54/x
  3. Step 3: Cross multiply
    3,328.75x = 4,992.18 × 1,378.54
  4. Step 4: Simplify right side
    3,328.75x = 6,881,919.82
  5. Step 5: Solve for x
    x = 6,881,919.82/3,328.75
  6. Step 6: Final answer
    x = 2,067.42

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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.