Home / 3,759.39-5,638.26-1,419.33

Finding the Fourth Proportional to 3,759.39, 5,638.26 and 1,419.33

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Solution

The fourth proportional to 3,759.39, 5,638.26 and 1,419.33 is: 2,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.39 : 5,638.26 = 1,419.33 : x
  2. Step 2: Convert to fraction form
    3,759.39/5,638.26 = 1,419.33/x
  3. Step 3: Cross multiply
    3,759.39x = 5,638.26 × 1,419.33
  4. Step 4: Simplify right side
    3,759.39x = 8,002,551.57
  5. Step 5: Solve for x
    x = 8,002,551.57/3,759.39
  6. Step 6: Final answer
    x = 2,128.68

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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.