Home / 2,712.63-4,067.19-1,785.38

Finding the Fourth Proportional to 2,712.63, 4,067.19 and 1,785.38

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Solution

The fourth proportional to 2,712.63, 4,067.19 and 1,785.38 is: 2,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.63 : 4,067.19 = 1,785.38 : x
  2. Step 2: Convert to fraction form
    2,712.63/4,067.19 = 1,785.38/x
  3. Step 3: Cross multiply
    2,712.63x = 4,067.19 × 1,785.38
  4. Step 4: Simplify right side
    2,712.63x = 7,261,479.68
  5. Step 5: Solve for x
    x = 7,261,479.68/2,712.63
  6. Step 6: Final answer
    x = 2,676.91

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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.