Home / 5,174.82-7,769.52-4,939.92

Finding the Fourth Proportional to 5,174.82, 7,769.52 and 4,939.92

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Solution

The fourth proportional to 5,174.82, 7,769.52 and 4,939.92 is: 7,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.82 : 7,769.52 = 4,939.92 : x
  2. Step 2: Convert to fraction form
    5,174.82/7,769.52 = 4,939.92/x
  3. Step 3: Cross multiply
    5,174.82x = 7,769.52 × 4,939.92
  4. Step 4: Simplify right side
    5,174.82x = 38,380,807.24
  5. Step 5: Solve for x
    x = 38,380,807.24/5,174.82
  6. Step 6: Final answer
    x = 7,416.84

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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.