Home / 2,169.20-2,990.96-2,052.43

Finding the Fourth Proportional to 2,169.20, 2,990.96 and 2,052.43

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Solution

The fourth proportional to 2,169.20, 2,990.96 and 2,052.43 is: 2,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.20 : 2,990.96 = 2,052.43 : x
  2. Step 2: Convert to fraction form
    2,169.20/2,990.96 = 2,052.43/x
  3. Step 3: Cross multiply
    2,169.20x = 2,990.96 × 2,052.43
  4. Step 4: Simplify right side
    2,169.20x = 6,138,736.03
  5. Step 5: Solve for x
    x = 6,138,736.03/2,169.20
  6. Step 6: Final answer
    x = 2,829.95

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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.