Home / 3,979.11-5,490.63-2,300.25

Finding the Fourth Proportional to 3,979.11, 5,490.63 and 2,300.25

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Solution

The fourth proportional to 3,979.11, 5,490.63 and 2,300.25 is: 3,174.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.11 : 5,490.63 = 2,300.25 : x
  2. Step 2: Convert to fraction form
    3,979.11/5,490.63 = 2,300.25/x
  3. Step 3: Cross multiply
    3,979.11x = 5,490.63 × 2,300.25
  4. Step 4: Simplify right side
    3,979.11x = 12,629,821.66
  5. Step 5: Solve for x
    x = 12,629,821.66/3,979.11
  6. Step 6: Final answer
    x = 3,174.03

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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.