Home / 3,822.91-5,268.47-2,982.28

Finding the Fourth Proportional to 3,822.91, 5,268.47 and 2,982.28

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Solution

The fourth proportional to 3,822.91, 5,268.47 and 2,982.28 is: 4,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.91 : 5,268.47 = 2,982.28 : x
  2. Step 2: Convert to fraction form
    3,822.91/5,268.47 = 2,982.28/x
  3. Step 3: Cross multiply
    3,822.91x = 5,268.47 × 2,982.28
  4. Step 4: Simplify right side
    3,822.91x = 15,712,011.46
  5. Step 5: Solve for x
    x = 15,712,011.46/3,822.91
  6. Step 6: Final answer
    x = 4,109.97

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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.