Home / 7,939.44-11,909.30-3,011.40

Finding the Fourth Proportional to 7,939.44, 11,909.30 and 3,011.40

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Solution

The fourth proportional to 7,939.44, 11,909.30 and 3,011.40 is: 4,517.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.44 : 11,909.30 = 3,011.40 : x
  2. Step 2: Convert to fraction form
    7,939.44/11,909.30 = 3,011.40/x
  3. Step 3: Cross multiply
    7,939.44x = 11,909.30 × 3,011.40
  4. Step 4: Simplify right side
    7,939.44x = 35,863,650.96
  5. Step 5: Solve for x
    x = 35,863,650.96/7,939.44
  6. Step 6: Final answer
    x = 4,517.15

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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.