Home / 3,659.22-5,490.75-1,351.38

Finding the Fourth Proportional to 3,659.22, 5,490.75 and 1,351.38

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Solution

The fourth proportional to 3,659.22, 5,490.75 and 1,351.38 is: 2,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.22 : 5,490.75 = 1,351.38 : x
  2. Step 2: Convert to fraction form
    3,659.22/5,490.75 = 1,351.38/x
  3. Step 3: Cross multiply
    3,659.22x = 5,490.75 × 1,351.38
  4. Step 4: Simplify right side
    3,659.22x = 7,420,089.74
  5. Step 5: Solve for x
    x = 7,420,089.74/3,659.22
  6. Step 6: Final answer
    x = 2,027.78

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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.