Home / 3,728.23-5,145.08-2,049.79

Finding the Fourth Proportional to 3,728.23, 5,145.08 and 2,049.79

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Solution

The fourth proportional to 3,728.23, 5,145.08 and 2,049.79 is: 2,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.23 : 5,145.08 = 2,049.79 : x
  2. Step 2: Convert to fraction form
    3,728.23/5,145.08 = 2,049.79/x
  3. Step 3: Cross multiply
    3,728.23x = 5,145.08 × 2,049.79
  4. Step 4: Simplify right side
    3,728.23x = 10,546,333.53
  5. Step 5: Solve for x
    x = 10,546,333.53/3,728.23
  6. Step 6: Final answer
    x = 2,828.78

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1.5x scale

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.