Home / 3,926.31-5,418.28-2,133.77

Finding the Fourth Proportional to 3,926.31, 5,418.28 and 2,133.77

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Solution

The fourth proportional to 3,926.31, 5,418.28 and 2,133.77 is: 2,944.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.31 : 5,418.28 = 2,133.77 : x
  2. Step 2: Convert to fraction form
    3,926.31/5,418.28 = 2,133.77/x
  3. Step 3: Cross multiply
    3,926.31x = 5,418.28 × 2,133.77
  4. Step 4: Simplify right side
    3,926.31x = 11,561,363.32
  5. Step 5: Solve for x
    x = 11,561,363.32/3,926.31
  6. Step 6: Final answer
    x = 2,944.59

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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.