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Finding the Fourth Proportional to 2,674.73, 3,691.09 and 1,555.61

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Solution

The fourth proportional to 2,674.73, 3,691.09 and 1,555.61 is: 2,146.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.73 : 3,691.09 = 1,555.61 : x
  2. Step 2: Convert to fraction form
    2,674.73/3,691.09 = 1,555.61/x
  3. Step 3: Cross multiply
    2,674.73x = 3,691.09 × 1,555.61
  4. Step 4: Simplify right side
    2,674.73x = 5,741,880.00
  5. Step 5: Solve for x
    x = 5,741,880.00/2,674.73
  6. Step 6: Final answer
    x = 2,146.71

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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.