Home / 5,145.15-7,730.06-3,299.87

Finding the Fourth Proportional to 5,145.15, 7,730.06 and 3,299.87

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Solution

The fourth proportional to 5,145.15, 7,730.06 and 3,299.87 is: 4,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.15 : 7,730.06 = 3,299.87 : x
  2. Step 2: Convert to fraction form
    5,145.15/7,730.06 = 3,299.87/x
  3. Step 3: Cross multiply
    5,145.15x = 7,730.06 × 3,299.87
  4. Step 4: Simplify right side
    5,145.15x = 25,508,137.94
  5. Step 5: Solve for x
    x = 25,508,137.94/5,145.15
  6. Step 6: Final answer
    x = 4,957.71

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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.