Home / 3,728.64-5,145.76-2,236.62

Finding the Fourth Proportional to 3,728.64, 5,145.76 and 2,236.62

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Solution

The fourth proportional to 3,728.64, 5,145.76 and 2,236.62 is: 3,086.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.64 : 5,145.76 = 2,236.62 : x
  2. Step 2: Convert to fraction form
    3,728.64/5,145.76 = 2,236.62/x
  3. Step 3: Cross multiply
    3,728.64x = 5,145.76 × 2,236.62
  4. Step 4: Simplify right side
    3,728.64x = 11,509,109.73
  5. Step 5: Solve for x
    x = 11,509,109.73/3,728.64
  6. Step 6: Final answer
    x = 3,086.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.