Home / 2,732.20-3,770.35-1,553.65

Finding the Fourth Proportional to 2,732.20, 3,770.35 and 1,553.65

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Solution

The fourth proportional to 2,732.20, 3,770.35 and 1,553.65 is: 2,143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,732.20 : 3,770.35 = 1,553.65 : x
  2. Step 2: Convert to fraction form
    2,732.20/3,770.35 = 1,553.65/x
  3. Step 3: Cross multiply
    2,732.20x = 3,770.35 × 1,553.65
  4. Step 4: Simplify right side
    2,732.20x = 5,857,790.97
  5. Step 5: Solve for x
    x = 5,857,790.97/2,732.20
  6. Step 6: Final answer
    x = 2,143.99

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1.5x scale

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.