Home / 3,759.68-5,188.36-2,081.09

Finding the Fourth Proportional to 3,759.68, 5,188.36 and 2,081.09

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Solution

The fourth proportional to 3,759.68, 5,188.36 and 2,081.09 is: 2,871.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.68 : 5,188.36 = 2,081.09 : x
  2. Step 2: Convert to fraction form
    3,759.68/5,188.36 = 2,081.09/x
  3. Step 3: Cross multiply
    3,759.68x = 5,188.36 × 2,081.09
  4. Step 4: Simplify right side
    3,759.68x = 10,797,449.32
  5. Step 5: Solve for x
    x = 10,797,449.32/3,759.68
  6. Step 6: Final answer
    x = 2,871.91

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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.