Home / 5,134.72-7,696.56-2,174.80

Finding the Fourth Proportional to 5,134.72, 7,696.56 and 2,174.80

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Solution

The fourth proportional to 5,134.72, 7,696.56 and 2,174.80 is: 3,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.72 : 7,696.56 = 2,174.80 : x
  2. Step 2: Convert to fraction form
    5,134.72/7,696.56 = 2,174.80/x
  3. Step 3: Cross multiply
    5,134.72x = 7,696.56 × 2,174.80
  4. Step 4: Simplify right side
    5,134.72x = 16,738,478.69
  5. Step 5: Solve for x
    x = 16,738,478.69/5,134.72
  6. Step 6: Final answer
    x = 3,259.86

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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.