Home / 3,396.72-4,687.92-1,999.44

Finding the Fourth Proportional to 3,396.72, 4,687.92 and 1,999.44

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Solution

The fourth proportional to 3,396.72, 4,687.92 and 1,999.44 is: 2,759.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.72 : 4,687.92 = 1,999.44 : x
  2. Step 2: Convert to fraction form
    3,396.72/4,687.92 = 1,999.44/x
  3. Step 3: Cross multiply
    3,396.72x = 4,687.92 × 1,999.44
  4. Step 4: Simplify right side
    3,396.72x = 9,373,214.76
  5. Step 5: Solve for x
    x = 9,373,214.76/3,396.72
  6. Step 6: Final answer
    x = 2,759.49

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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.