Home / 2,728.68-4,092.18-1,085.16

Finding the Fourth Proportional to 2,728.68, 4,092.18 and 1,085.16

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Solution

The fourth proportional to 2,728.68, 4,092.18 and 1,085.16 is: 1,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.68 : 4,092.18 = 1,085.16 : x
  2. Step 2: Convert to fraction form
    2,728.68/4,092.18 = 1,085.16/x
  3. Step 3: Cross multiply
    2,728.68x = 4,092.18 × 1,085.16
  4. Step 4: Simplify right side
    2,728.68x = 4,440,670.05
  5. Step 5: Solve for x
    x = 4,440,670.05/2,728.68
  6. Step 6: Final answer
    x = 1,627.41

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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.