Home / 2,728.23-4,086.12-1,630.35

Finding the Fourth Proportional to 2,728.23, 4,086.12 and 1,630.35

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Solution

The fourth proportional to 2,728.23, 4,086.12 and 1,630.35 is: 2,441.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.23 : 4,086.12 = 1,630.35 : x
  2. Step 2: Convert to fraction form
    2,728.23/4,086.12 = 1,630.35/x
  3. Step 3: Cross multiply
    2,728.23x = 4,086.12 × 1,630.35
  4. Step 4: Simplify right side
    2,728.23x = 6,661,805.74
  5. Step 5: Solve for x
    x = 6,661,805.74/2,728.23
  6. Step 6: Final answer
    x = 2,441.81

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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.