Home / 7,954.18-11,932.64-2,689.22

Finding the Fourth Proportional to 7,954.18, 11,932.64 and 2,689.22

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Solution

The fourth proportional to 7,954.18, 11,932.64 and 2,689.22 is: 4,034.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.18 : 11,932.64 = 2,689.22 : x
  2. Step 2: Convert to fraction form
    7,954.18/11,932.64 = 2,689.22/x
  3. Step 3: Cross multiply
    7,954.18x = 11,932.64 × 2,689.22
  4. Step 4: Simplify right side
    7,954.18x = 32,089,480.69
  5. Step 5: Solve for x
    x = 32,089,480.69/7,954.18
  6. Step 6: Final answer
    x = 4,034.29

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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.