Home / 2,781.17-3,817.56-2,459.38

Finding the Fourth Proportional to 2,781.17, 3,817.56 and 2,459.38

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Solution

The fourth proportional to 2,781.17, 3,817.56 and 2,459.38 is: 3,375.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.17 : 3,817.56 = 2,459.38 : x
  2. Step 2: Convert to fraction form
    2,781.17/3,817.56 = 2,459.38/x
  3. Step 3: Cross multiply
    2,781.17x = 3,817.56 × 2,459.38
  4. Step 4: Simplify right side
    2,781.17x = 9,388,821.17
  5. Step 5: Solve for x
    x = 9,388,821.17/2,781.17
  6. Step 6: Final answer
    x = 3,375.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.