Home / 7,939.19-11,909.58-2,744.39

Finding the Fourth Proportional to 7,939.19, 11,909.58 and 2,744.39

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Solution

The fourth proportional to 7,939.19, 11,909.58 and 2,744.39 is: 4,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.19 : 11,909.58 = 2,744.39 : x
  2. Step 2: Convert to fraction form
    7,939.19/11,909.58 = 2,744.39/x
  3. Step 3: Cross multiply
    7,939.19x = 11,909.58 × 2,744.39
  4. Step 4: Simplify right side
    7,939.19x = 32,684,532.26
  5. Step 5: Solve for x
    x = 32,684,532.26/7,939.19
  6. Step 6: Final answer
    x = 4,116.86

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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.