Home / 5,138.39-7,704.36-2,361.51

Finding the Fourth Proportional to 5,138.39, 7,704.36 and 2,361.51

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Solution

The fourth proportional to 5,138.39, 7,704.36 and 2,361.51 is: 3,540.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.39 : 7,704.36 = 2,361.51 : x
  2. Step 2: Convert to fraction form
    5,138.39/7,704.36 = 2,361.51/x
  3. Step 3: Cross multiply
    5,138.39x = 7,704.36 × 2,361.51
  4. Step 4: Simplify right side
    5,138.39x = 18,193,923.18
  5. Step 5: Solve for x
    x = 18,193,923.18/5,138.39
  6. Step 6: Final answer
    x = 3,540.79

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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.