Home / 3,169.80-4,755.78-2,809.08

Finding the Fourth Proportional to 3,169.80, 4,755.78 and 2,809.08

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Solution

The fourth proportional to 3,169.80, 4,755.78 and 2,809.08 is: 4,214.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.80 : 4,755.78 = 2,809.08 : x
  2. Step 2: Convert to fraction form
    3,169.80/4,755.78 = 2,809.08/x
  3. Step 3: Cross multiply
    3,169.80x = 4,755.78 × 2,809.08
  4. Step 4: Simplify right side
    3,169.80x = 13,359,366.48
  5. Step 5: Solve for x
    x = 13,359,366.48/3,169.80
  6. Step 6: Final answer
    x = 4,214.58

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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.