Home / 3,902.13-5,849.96-2,728.79

Finding the Fourth Proportional to 3,902.13, 5,849.96 and 2,728.79

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Solution

The fourth proportional to 3,902.13, 5,849.96 and 2,728.79 is: 4,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.13 : 5,849.96 = 2,728.79 : x
  2. Step 2: Convert to fraction form
    3,902.13/5,849.96 = 2,728.79/x
  3. Step 3: Cross multiply
    3,902.13x = 5,849.96 × 2,728.79
  4. Step 4: Simplify right side
    3,902.13x = 15,963,269.45
  5. Step 5: Solve for x
    x = 15,963,269.45/3,902.13
  6. Step 6: Final answer
    x = 4,090.91

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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.