Home / 7,955.72-11,939.10-2,761.59

Finding the Fourth Proportional to 7,955.72, 11,939.10 and 2,761.59

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Solution

The fourth proportional to 7,955.72, 11,939.10 and 2,761.59 is: 4,144.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.72 : 11,939.10 = 2,761.59 : x
  2. Step 2: Convert to fraction form
    7,955.72/11,939.10 = 2,761.59/x
  3. Step 3: Cross multiply
    7,955.72x = 11,939.10 × 2,761.59
  4. Step 4: Simplify right side
    7,955.72x = 32,970,933.58
  5. Step 5: Solve for x
    x = 32,970,933.58/7,955.72
  6. Step 6: Final answer
    x = 4,144.31

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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.