Home / 7,929.76-11,891.04-2,734.24

Finding the Fourth Proportional to 7,929.76, 11,891.04 and 2,734.24

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Solution

The fourth proportional to 7,929.76, 11,891.04 and 2,734.24 is: 4,100.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.76 : 11,891.04 = 2,734.24 : x
  2. Step 2: Convert to fraction form
    7,929.76/11,891.04 = 2,734.24/x
  3. Step 3: Cross multiply
    7,929.76x = 11,891.04 × 2,734.24
  4. Step 4: Simplify right side
    7,929.76x = 32,512,957.21
  5. Step 5: Solve for x
    x = 32,512,957.21/7,929.76
  6. Step 6: Final answer
    x = 4,100.12

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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.