Home / 3,138.09-4,704.34-1,191.66

Finding the Fourth Proportional to 3,138.09, 4,704.34 and 1,191.66

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Solution

The fourth proportional to 3,138.09, 4,704.34 and 1,191.66 is: 1,786.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.09 : 4,704.34 = 1,191.66 : x
  2. Step 2: Convert to fraction form
    3,138.09/4,704.34 = 1,191.66/x
  3. Step 3: Cross multiply
    3,138.09x = 4,704.34 × 1,191.66
  4. Step 4: Simplify right side
    3,138.09x = 5,605,975.29
  5. Step 5: Solve for x
    x = 5,605,975.29/3,138.09
  6. Step 6: Final answer
    x = 1,786.43

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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.