Home / 3,927.89-5,420.80-2,249.83

Finding the Fourth Proportional to 3,927.89, 5,420.80 and 2,249.83

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Solution

The fourth proportional to 3,927.89, 5,420.80 and 2,249.83 is: 3,104.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.89 : 5,420.80 = 2,249.83 : x
  2. Step 2: Convert to fraction form
    3,927.89/5,420.80 = 2,249.83/x
  3. Step 3: Cross multiply
    3,927.89x = 5,420.80 × 2,249.83
  4. Step 4: Simplify right side
    3,927.89x = 12,195,859.29
  5. Step 5: Solve for x
    x = 12,195,859.29/3,927.89
  6. Step 6: Final answer
    x = 3,104.94

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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.