Home / 3,960.86-5,465.96-2,192.43

Finding the Fourth Proportional to 3,960.86, 5,465.96 and 2,192.43

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Solution

The fourth proportional to 3,960.86, 5,465.96 and 2,192.43 is: 3,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.86 : 5,465.96 = 2,192.43 : x
  2. Step 2: Convert to fraction form
    3,960.86/5,465.96 = 2,192.43/x
  3. Step 3: Cross multiply
    3,960.86x = 5,465.96 × 2,192.43
  4. Step 4: Simplify right side
    3,960.86x = 11,983,734.68
  5. Step 5: Solve for x
    x = 11,983,734.68/3,960.86
  6. Step 6: Final answer
    x = 3,025.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.