Home / 7,954.13-11,929.22-2,689.02

Finding the Fourth Proportional to 7,954.13, 11,929.22 and 2,689.02

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Solution

The fourth proportional to 7,954.13, 11,929.22 and 2,689.02 is: 4,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.13 : 11,929.22 = 2,689.02 : x
  2. Step 2: Convert to fraction form
    7,954.13/11,929.22 = 2,689.02/x
  3. Step 3: Cross multiply
    7,954.13x = 11,929.22 × 2,689.02
  4. Step 4: Simplify right side
    7,954.13x = 32,077,897.72
  5. Step 5: Solve for x
    x = 32,077,897.72/7,954.13
  6. Step 6: Final answer
    x = 4,032.86

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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.