Home / 5,176.32-7,144.52-2,939.61

Finding the Fourth Proportional to 5,176.32, 7,144.52 and 2,939.61

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Solution

The fourth proportional to 5,176.32, 7,144.52 and 2,939.61 is: 4,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.32 : 7,144.52 = 2,939.61 : x
  2. Step 2: Convert to fraction form
    5,176.32/7,144.52 = 2,939.61/x
  3. Step 3: Cross multiply
    5,176.32x = 7,144.52 × 2,939.61
  4. Step 4: Simplify right side
    5,176.32x = 21,002,102.44
  5. Step 5: Solve for x
    x = 21,002,102.44/5,176.32
  6. Step 6: Final answer
    x = 4,057.34

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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.