Home / 3,195.78-4,790.43-1,245.30

Finding the Fourth Proportional to 3,195.78, 4,790.43 and 1,245.30

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Solution

The fourth proportional to 3,195.78, 4,790.43 and 1,245.30 is: 1,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.78 : 4,790.43 = 1,245.30 : x
  2. Step 2: Convert to fraction form
    3,195.78/4,790.43 = 1,245.30/x
  3. Step 3: Cross multiply
    3,195.78x = 4,790.43 × 1,245.30
  4. Step 4: Simplify right side
    3,195.78x = 5,965,522.48
  5. Step 5: Solve for x
    x = 5,965,522.48/3,195.78
  6. Step 6: Final answer
    x = 1,866.69

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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.