Home / 3,908.25-5,393.52-2,918.43

Finding the Fourth Proportional to 3,908.25, 5,393.52 and 2,918.43

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Solution

The fourth proportional to 3,908.25, 5,393.52 and 2,918.43 is: 4,027.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.25 : 5,393.52 = 2,918.43 : x
  2. Step 2: Convert to fraction form
    3,908.25/5,393.52 = 2,918.43/x
  3. Step 3: Cross multiply
    3,908.25x = 5,393.52 × 2,918.43
  4. Step 4: Simplify right side
    3,908.25x = 15,740,610.57
  5. Step 5: Solve for x
    x = 15,740,610.57/3,908.25
  6. Step 6: Final answer
    x = 4,027.53

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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.