Home / 4,121.10-6,176.16-3,078.54

Finding the Fourth Proportional to 4,121.10, 6,176.16 and 3,078.54

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Solution

The fourth proportional to 4,121.10, 6,176.16 and 3,078.54 is: 4,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.10 : 6,176.16 = 3,078.54 : x
  2. Step 2: Convert to fraction form
    4,121.10/6,176.16 = 3,078.54/x
  3. Step 3: Cross multiply
    4,121.10x = 6,176.16 × 3,078.54
  4. Step 4: Simplify right side
    4,121.10x = 19,013,555.61
  5. Step 5: Solve for x
    x = 19,013,555.61/4,121.10
  6. Step 6: Final answer
    x = 4,613.71

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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.