Home / 3,672.13-5,067.78-2,078.77

Finding the Fourth Proportional to 3,672.13, 5,067.78 and 2,078.77

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Solution

The fourth proportional to 3,672.13, 5,067.78 and 2,078.77 is: 2,868.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.13 : 5,067.78 = 2,078.77 : x
  2. Step 2: Convert to fraction form
    3,672.13/5,067.78 = 2,078.77/x
  3. Step 3: Cross multiply
    3,672.13x = 5,067.78 × 2,078.77
  4. Step 4: Simplify right side
    3,672.13x = 10,534,749.03
  5. Step 5: Solve for x
    x = 10,534,749.03/3,672.13
  6. Step 6: Final answer
    x = 2,868.84

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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.