Home / 2,540.07-3,791.70-2,195.64

Finding the Fourth Proportional to 2,540.07, 3,791.70 and 2,195.64

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Solution

The fourth proportional to 2,540.07, 3,791.70 and 2,195.64 is: 3,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.07 : 3,791.70 = 2,195.64 : x
  2. Step 2: Convert to fraction form
    2,540.07/3,791.70 = 2,195.64/x
  3. Step 3: Cross multiply
    2,540.07x = 3,791.70 × 2,195.64
  4. Step 4: Simplify right side
    2,540.07x = 8,325,208.19
  5. Step 5: Solve for x
    x = 8,325,208.19/2,540.07
  6. Step 6: Final answer
    x = 3,277.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.