Home / 5,105.16-7,657.92-2,180.52

Finding the Fourth Proportional to 5,105.16, 7,657.92 and 2,180.52

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Solution

The fourth proportional to 5,105.16, 7,657.92 and 2,180.52 is: 3,270.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.16 : 7,657.92 = 2,180.52 : x
  2. Step 2: Convert to fraction form
    5,105.16/7,657.92 = 2,180.52/x
  3. Step 3: Cross multiply
    5,105.16x = 7,657.92 × 2,180.52
  4. Step 4: Simplify right side
    5,105.16x = 16,698,247.72
  5. Step 5: Solve for x
    x = 16,698,247.72/5,105.16
  6. Step 6: Final answer
    x = 3,270.86

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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.