Home / 5,145.91-7,731.18-3,300.62

Finding the Fourth Proportional to 5,145.91, 7,731.18 and 3,300.62

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Solution

The fourth proportional to 5,145.91, 7,731.18 and 3,300.62 is: 4,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.91 : 7,731.18 = 3,300.62 : x
  2. Step 2: Convert to fraction form
    5,145.91/7,731.18 = 3,300.62/x
  3. Step 3: Cross multiply
    5,145.91x = 7,731.18 × 3,300.62
  4. Step 4: Simplify right side
    5,145.91x = 25,517,648.68
  5. Step 5: Solve for x
    x = 25,517,648.68/5,145.91
  6. Step 6: Final answer
    x = 4,958.82

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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.