Home / 3,209.46-4,427.37-2,161.86

Finding the Fourth Proportional to 3,209.46, 4,427.37 and 2,161.86

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Solution

The fourth proportional to 3,209.46, 4,427.37 and 2,161.86 is: 2,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.46 : 4,427.37 = 2,161.86 : x
  2. Step 2: Convert to fraction form
    3,209.46/4,427.37 = 2,161.86/x
  3. Step 3: Cross multiply
    3,209.46x = 4,427.37 × 2,161.86
  4. Step 4: Simplify right side
    3,209.46x = 9,571,354.11
  5. Step 5: Solve for x
    x = 9,571,354.11/3,209.46
  6. Step 6: Final answer
    x = 2,982.23

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