Home / 7,849.80-11,776.32-3,409.38

Finding the Fourth Proportional to 7,849.80, 11,776.32 and 3,409.38

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Solution

The fourth proportional to 7,849.80, 11,776.32 and 3,409.38 is: 5,114.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.80 : 11,776.32 = 3,409.38 : x
  2. Step 2: Convert to fraction form
    7,849.80/11,776.32 = 3,409.38/x
  3. Step 3: Cross multiply
    7,849.80x = 11,776.32 × 3,409.38
  4. Step 4: Simplify right side
    7,849.80x = 40,149,949.88
  5. Step 5: Solve for x
    x = 40,149,949.88/7,849.80
  6. Step 6: Final answer
    x = 5,114.77

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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.