Home / 3,209.48-4,815.30-2,169.44

Finding the Fourth Proportional to 3,209.48, 4,815.30 and 2,169.44

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Solution

The fourth proportional to 3,209.48, 4,815.30 and 2,169.44 is: 3,254.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.48 : 4,815.30 = 2,169.44 : x
  2. Step 2: Convert to fraction form
    3,209.48/4,815.30 = 2,169.44/x
  3. Step 3: Cross multiply
    3,209.48x = 4,815.30 × 2,169.44
  4. Step 4: Simplify right side
    3,209.48x = 10,446,504.43
  5. Step 5: Solve for x
    x = 10,446,504.43/3,209.48
  6. Step 6: Final answer
    x = 3,254.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.