Home / 3,138.24-4,704.57-1,191.81

Finding the Fourth Proportional to 3,138.24, 4,704.57 and 1,191.81

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Solution

The fourth proportional to 3,138.24, 4,704.57 and 1,191.81 is: 1,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.24 : 4,704.57 = 1,191.81 : x
  2. Step 2: Convert to fraction form
    3,138.24/4,704.57 = 1,191.81/x
  3. Step 3: Cross multiply
    3,138.24x = 4,704.57 × 1,191.81
  4. Step 4: Simplify right side
    3,138.24x = 5,606,953.57
  5. Step 5: Solve for x
    x = 5,606,953.57/3,138.24
  6. Step 6: Final answer
    x = 1,786.66

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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.