Home / 7,956.28-11,930.22-2,689.48

Finding the Fourth Proportional to 7,956.28, 11,930.22 and 2,689.48

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Solution

The fourth proportional to 7,956.28, 11,930.22 and 2,689.48 is: 4,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.28 : 11,930.22 = 2,689.48 : x
  2. Step 2: Convert to fraction form
    7,956.28/11,930.22 = 2,689.48/x
  3. Step 3: Cross multiply
    7,956.28x = 11,930.22 × 2,689.48
  4. Step 4: Simplify right side
    7,956.28x = 32,086,088.09
  5. Step 5: Solve for x
    x = 32,086,088.09/7,956.28
  6. Step 6: Final answer
    x = 4,032.80

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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.