Home / 3,918.97-5,406.68-2,502.71

Finding the Fourth Proportional to 3,918.97, 5,406.68 and 2,502.71

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Solution

The fourth proportional to 3,918.97, 5,406.68 and 2,502.71 is: 3,452.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.97 : 5,406.68 = 2,502.71 : x
  2. Step 2: Convert to fraction form
    3,918.97/5,406.68 = 2,502.71/x
  3. Step 3: Cross multiply
    3,918.97x = 5,406.68 × 2,502.71
  4. Step 4: Simplify right side
    3,918.97x = 13,531,352.10
  5. Step 5: Solve for x
    x = 13,531,352.10/3,918.97
  6. Step 6: Final answer
    x = 3,452.78

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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.