Home / 2,728.45-4,085.38-1,630.09

Finding the Fourth Proportional to 2,728.45, 4,085.38 and 1,630.09

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Solution

The fourth proportional to 2,728.45, 4,085.38 and 1,630.09 is: 2,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.45 : 4,085.38 = 1,630.09 : x
  2. Step 2: Convert to fraction form
    2,728.45/4,085.38 = 1,630.09/x
  3. Step 3: Cross multiply
    2,728.45x = 4,085.38 × 1,630.09
  4. Step 4: Simplify right side
    2,728.45x = 6,659,537.08
  5. Step 5: Solve for x
    x = 6,659,537.08/2,728.45
  6. Step 6: Final answer
    x = 2,440.78

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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.