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Finding the Fourth Proportional to 2,733.07, 4,099.61 and 681.07

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Solution

The fourth proportional to 2,733.07, 4,099.61 and 681.07 is: 1,021.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,733.07 : 4,099.61 = 681.07 : x
  2. Step 2: Convert to fraction form
    2,733.07/4,099.61 = 681.07/x
  3. Step 3: Cross multiply
    2,733.07x = 4,099.61 × 681.07
  4. Step 4: Simplify right side
    2,733.07x = 2,792,121.38
  5. Step 5: Solve for x
    x = 2,792,121.38/2,733.07
  6. Step 6: Final answer
    x = 1,021.61

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.