Home / 5,168.30-7,131.66-2,929.73

Finding the Fourth Proportional to 5,168.30, 7,131.66 and 2,929.73

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Solution

The fourth proportional to 5,168.30, 7,131.66 and 2,929.73 is: 4,042.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.30 : 7,131.66 = 2,929.73 : x
  2. Step 2: Convert to fraction form
    5,168.30/7,131.66 = 2,929.73/x
  3. Step 3: Cross multiply
    5,168.30x = 7,131.66 × 2,929.73
  4. Step 4: Simplify right side
    5,168.30x = 20,893,838.25
  5. Step 5: Solve for x
    x = 20,893,838.25/5,168.30
  6. Step 6: Final answer
    x = 4,042.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.