Home / 3,412.20-5,112.82-1,950.55

Finding the Fourth Proportional to 3,412.20, 5,112.82 and 1,950.55

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Solution

The fourth proportional to 3,412.20, 5,112.82 and 1,950.55 is: 2,922.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.20 : 5,112.82 = 1,950.55 : x
  2. Step 2: Convert to fraction form
    3,412.20/5,112.82 = 1,950.55/x
  3. Step 3: Cross multiply
    3,412.20x = 5,112.82 × 1,950.55
  4. Step 4: Simplify right side
    3,412.20x = 9,972,811.05
  5. Step 5: Solve for x
    x = 9,972,811.05/3,412.20
  6. Step 6: Final answer
    x = 2,922.69

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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.