Home / 3,739.87-5,161.83-2,146.78

Finding the Fourth Proportional to 3,739.87, 5,161.83 and 2,146.78

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Solution

The fourth proportional to 3,739.87, 5,161.83 and 2,146.78 is: 2,963.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.87 : 5,161.83 = 2,146.78 : x
  2. Step 2: Convert to fraction form
    3,739.87/5,161.83 = 2,146.78/x
  3. Step 3: Cross multiply
    3,739.87x = 5,161.83 × 2,146.78
  4. Step 4: Simplify right side
    3,739.87x = 11,081,297.29
  5. Step 5: Solve for x
    x = 11,081,297.29/3,739.87
  6. Step 6: Final answer
    x = 2,963.02

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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.