Home / 3,195.12-4,791.12-1,220.83

Finding the Fourth Proportional to 3,195.12, 4,791.12 and 1,220.83

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Solution

The fourth proportional to 3,195.12, 4,791.12 and 1,220.83 is: 1,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.12 : 4,791.12 = 1,220.83 : x
  2. Step 2: Convert to fraction form
    3,195.12/4,791.12 = 1,220.83/x
  3. Step 3: Cross multiply
    3,195.12x = 4,791.12 × 1,220.83
  4. Step 4: Simplify right side
    3,195.12x = 5,849,143.03
  5. Step 5: Solve for x
    x = 5,849,143.03/3,195.12
  6. Step 6: Final answer
    x = 1,830.65

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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.