Home / 3,138.39-4,704.80-1,494.09

Finding the Fourth Proportional to 3,138.39, 4,704.80 and 1,494.09

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Solution

The fourth proportional to 3,138.39, 4,704.80 and 1,494.09 is: 2,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.39 : 4,704.80 = 1,494.09 : x
  2. Step 2: Convert to fraction form
    3,138.39/4,704.80 = 1,494.09/x
  3. Step 3: Cross multiply
    3,138.39x = 4,704.80 × 1,494.09
  4. Step 4: Simplify right side
    3,138.39x = 7,029,387.16
  5. Step 5: Solve for x
    x = 7,029,387.16/3,138.39
  6. Step 6: Final answer
    x = 2,239.81

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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.