Home / 3,892.15-5,369.87-2,379.17

Finding the Fourth Proportional to 3,892.15, 5,369.87 and 2,379.17

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Solution

The fourth proportional to 3,892.15, 5,369.87 and 2,379.17 is: 3,282.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.15 : 5,369.87 = 2,379.17 : x
  2. Step 2: Convert to fraction form
    3,892.15/5,369.87 = 2,379.17/x
  3. Step 3: Cross multiply
    3,892.15x = 5,369.87 × 2,379.17
  4. Step 4: Simplify right side
    3,892.15x = 12,775,821.71
  5. Step 5: Solve for x
    x = 12,775,821.71/3,892.15
  6. Step 6: Final answer
    x = 3,282.46

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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.