Home / 7,927.85-11,892.38-2,380.77

Finding the Fourth Proportional to 7,927.85, 11,892.38 and 2,380.77

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Solution

The fourth proportional to 7,927.85, 11,892.38 and 2,380.77 is: 3,571.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.85 : 11,892.38 = 2,380.77 : x
  2. Step 2: Convert to fraction form
    7,927.85/11,892.38 = 2,380.77/x
  3. Step 3: Cross multiply
    7,927.85x = 11,892.38 × 2,380.77
  4. Step 4: Simplify right side
    7,927.85x = 28,313,021.53
  5. Step 5: Solve for x
    x = 28,313,021.53/7,927.85
  6. Step 6: Final answer
    x = 3,571.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.