Home / 3,859.68-5,789.40-1,086.36

Finding the Fourth Proportional to 3,859.68, 5,789.40 and 1,086.36

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Solution

The fourth proportional to 3,859.68, 5,789.40 and 1,086.36 is: 1,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.68 : 5,789.40 = 1,086.36 : x
  2. Step 2: Convert to fraction form
    3,859.68/5,789.40 = 1,086.36/x
  3. Step 3: Cross multiply
    3,859.68x = 5,789.40 × 1,086.36
  4. Step 4: Simplify right side
    3,859.68x = 6,289,372.58
  5. Step 5: Solve for x
    x = 6,289,372.58/3,859.68
  6. Step 6: Final answer
    x = 1,629.51

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.