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Finding the Fourth Proportional to 2,044.80, 2,836.80 and 1,958.40

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Solution

The fourth proportional to 2,044.80, 2,836.80 and 1,958.40 is: 2,716.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,044.80 : 2,836.80 = 1,958.40 : x
  2. Step 2: Convert to fraction form
    2,044.80/2,836.80 = 1,958.40/x
  3. Step 3: Cross multiply
    2,044.80x = 2,836.80 × 1,958.40
  4. Step 4: Simplify right side
    2,044.80x = 5,555,589.12
  5. Step 5: Solve for x
    x = 5,555,589.12/2,044.80
  6. Step 6: Final answer
    x = 2,716.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.