Home / 3,380.54-5,068.20-2,145.38

Finding the Fourth Proportional to 3,380.54, 5,068.20 and 2,145.38

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Solution

The fourth proportional to 3,380.54, 5,068.20 and 2,145.38 is: 3,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.54 : 5,068.20 = 2,145.38 : x
  2. Step 2: Convert to fraction form
    3,380.54/5,068.20 = 2,145.38/x
  3. Step 3: Cross multiply
    3,380.54x = 5,068.20 × 2,145.38
  4. Step 4: Simplify right side
    3,380.54x = 10,873,214.92
  5. Step 5: Solve for x
    x = 10,873,214.92/3,380.54
  6. Step 6: Final answer
    x = 3,216.41

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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.