Home / 4,122.72-5,691.99-2,708.93

Finding the Fourth Proportional to 4,122.72, 5,691.99 and 2,708.93

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Solution

The fourth proportional to 4,122.72, 5,691.99 and 2,708.93 is: 3,740.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.72 : 5,691.99 = 2,708.93 : x
  2. Step 2: Convert to fraction form
    4,122.72/5,691.99 = 2,708.93/x
  3. Step 3: Cross multiply
    4,122.72x = 5,691.99 × 2,708.93
  4. Step 4: Simplify right side
    4,122.72x = 15,419,174.01
  5. Step 5: Solve for x
    x = 15,419,174.01/4,122.72
  6. Step 6: Final answer
    x = 3,740.05

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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.