Home / 3,933.90-5,428.30-2,340.59

Finding the Fourth Proportional to 3,933.90, 5,428.30 and 2,340.59

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Solution

The fourth proportional to 3,933.90, 5,428.30 and 2,340.59 is: 3,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.90 : 5,428.30 = 2,340.59 : x
  2. Step 2: Convert to fraction form
    3,933.90/5,428.30 = 2,340.59/x
  3. Step 3: Cross multiply
    3,933.90x = 5,428.30 × 2,340.59
  4. Step 4: Simplify right side
    3,933.90x = 12,705,418.85
  5. Step 5: Solve for x
    x = 12,705,418.85/3,933.90
  6. Step 6: Final answer
    x = 3,229.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.