Home / 2,728.68-4,094.64-1,084.78

Finding the Fourth Proportional to 2,728.68, 4,094.64 and 1,084.78

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Solution

The fourth proportional to 2,728.68, 4,094.64 and 1,084.78 is: 1,627.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.68 : 4,094.64 = 1,084.78 : x
  2. Step 2: Convert to fraction form
    2,728.68/4,094.64 = 1,084.78/x
  3. Step 3: Cross multiply
    2,728.68x = 4,094.64 × 1,084.78
  4. Step 4: Simplify right side
    2,728.68x = 4,441,778.16
  5. Step 5: Solve for x
    x = 4,441,778.16/2,728.68
  6. Step 6: Final answer
    x = 1,627.82

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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.