Home / 3,209.56-4,427.88-2,161.96

Finding the Fourth Proportional to 3,209.56, 4,427.88 and 2,161.96

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Solution

The fourth proportional to 3,209.56, 4,427.88 and 2,161.96 is: 2,982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.56 : 4,427.88 = 2,161.96 : x
  2. Step 2: Convert to fraction form
    3,209.56/4,427.88 = 2,161.96/x
  3. Step 3: Cross multiply
    3,209.56x = 4,427.88 × 2,161.96
  4. Step 4: Simplify right side
    3,209.56x = 9,572,899.44
  5. Step 5: Solve for x
    x = 9,572,899.44/3,209.56
  6. Step 6: Final answer
    x = 2,982.62

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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.