Home / 3,815.44-5,268.35-2,540.57

Finding the Fourth Proportional to 3,815.44, 5,268.35 and 2,540.57

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Solution

The fourth proportional to 3,815.44, 5,268.35 and 2,540.57 is: 3,508.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.44 : 5,268.35 = 2,540.57 : x
  2. Step 2: Convert to fraction form
    3,815.44/5,268.35 = 2,540.57/x
  3. Step 3: Cross multiply
    3,815.44x = 5,268.35 × 2,540.57
  4. Step 4: Simplify right side
    3,815.44x = 13,384,595.54
  5. Step 5: Solve for x
    x = 13,384,595.54/3,815.44
  6. Step 6: Final answer
    x = 3,508.01

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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.