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Finding the Fourth Proportional to 7,955.22, 11,932.45 and 2,689.86

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Solution

The fourth proportional to 7,955.22, 11,932.45 and 2,689.86 is: 4,034.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.22 : 11,932.45 = 2,689.86 : x
  2. Step 2: Convert to fraction form
    7,955.22/11,932.45 = 2,689.86/x
  3. Step 3: Cross multiply
    7,955.22x = 11,932.45 × 2,689.86
  4. Step 4: Simplify right side
    7,955.22x = 32,096,619.96
  5. Step 5: Solve for x
    x = 32,096,619.96/7,955.22
  6. Step 6: Final answer
    x = 4,034.66

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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.