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Finding the Fourth Proportional to 2,872.53, 3,940.86 and 2,733.11

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Solution

The fourth proportional to 2,872.53, 3,940.86 and 2,733.11 is: 3,749.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.53 : 3,940.86 = 2,733.11 : x
  2. Step 2: Convert to fraction form
    2,872.53/3,940.86 = 2,733.11/x
  3. Step 3: Cross multiply
    2,872.53x = 3,940.86 × 2,733.11
  4. Step 4: Simplify right side
    2,872.53x = 10,770,784.17
  5. Step 5: Solve for x
    x = 10,770,784.17/2,872.53
  6. Step 6: Final answer
    x = 3,749.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.