Home / 5,176.02-7,144.20-2,939.22

Finding the Fourth Proportional to 5,176.02, 7,144.20 and 2,939.22

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Solution

The fourth proportional to 5,176.02, 7,144.20 and 2,939.22 is: 4,056.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.02 : 7,144.20 = 2,939.22 : x
  2. Step 2: Convert to fraction form
    5,176.02/7,144.20 = 2,939.22/x
  3. Step 3: Cross multiply
    5,176.02x = 7,144.20 × 2,939.22
  4. Step 4: Simplify right side
    5,176.02x = 20,998,375.52
  5. Step 5: Solve for x
    x = 20,998,375.52/5,176.02
  6. Step 6: Final answer
    x = 4,056.86

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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.