Home / 7,939.11-11,909.26-2,674.11

Finding the Fourth Proportional to 7,939.11, 11,909.26 and 2,674.11

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Solution

The fourth proportional to 7,939.11, 11,909.26 and 2,674.11 is: 4,011.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.11 : 11,909.26 = 2,674.11 : x
  2. Step 2: Convert to fraction form
    7,939.11/11,909.26 = 2,674.11/x
  3. Step 3: Cross multiply
    7,939.11x = 11,909.26 × 2,674.11
  4. Step 4: Simplify right side
    7,939.11x = 31,846,719.26
  5. Step 5: Solve for x
    x = 31,846,719.26/7,939.11
  6. Step 6: Final answer
    x = 4,011.37

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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.