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Finding the Fourth Proportional to 1,820.89, 2,728.79 and 1,600.97

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Solution

The fourth proportional to 1,820.89, 2,728.79 and 1,600.97 is: 2,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.89 : 2,728.79 = 1,600.97 : x
  2. Step 2: Convert to fraction form
    1,820.89/2,728.79 = 1,600.97/x
  3. Step 3: Cross multiply
    1,820.89x = 2,728.79 × 1,600.97
  4. Step 4: Simplify right side
    1,820.89x = 4,368,702.92
  5. Step 5: Solve for x
    x = 4,368,702.92/1,820.89
  6. Step 6: Final answer
    x = 2,399.22

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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.