Home / 3,199.82-4,415.09-2,020.23

Finding the Fourth Proportional to 3,199.82, 4,415.09 and 2,020.23

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Solution

The fourth proportional to 3,199.82, 4,415.09 and 2,020.23 is: 2,787.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.82 : 4,415.09 = 2,020.23 : x
  2. Step 2: Convert to fraction form
    3,199.82/4,415.09 = 2,020.23/x
  3. Step 3: Cross multiply
    3,199.82x = 4,415.09 × 2,020.23
  4. Step 4: Simplify right side
    3,199.82x = 8,919,487.17
  5. Step 5: Solve for x
    x = 8,919,487.17/3,199.82
  6. Step 6: Final answer
    x = 2,787.50

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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.