Home / 3,868.36-5,336.94-2,542.78

Finding the Fourth Proportional to 3,868.36, 5,336.94 and 2,542.78

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Solution

The fourth proportional to 3,868.36, 5,336.94 and 2,542.78 is: 3,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.36 : 5,336.94 = 2,542.78 : x
  2. Step 2: Convert to fraction form
    3,868.36/5,336.94 = 2,542.78/x
  3. Step 3: Cross multiply
    3,868.36x = 5,336.94 × 2,542.78
  4. Step 4: Simplify right side
    3,868.36x = 13,570,664.29
  5. Step 5: Solve for x
    x = 13,570,664.29/3,868.36
  6. Step 6: Final answer
    x = 3,508.12

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1.5x scale

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.