Home / 3,997.14-5,515.80-2,505

Finding the Fourth Proportional to 3,997.14, 5,515.80 and 2,505

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Solution

The fourth proportional to 3,997.14, 5,515.80 and 2,505 is: 3,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.14 : 5,515.80 = 2,505 : x
  2. Step 2: Convert to fraction form
    3,997.14/5,515.80 = 2,505/x
  3. Step 3: Cross multiply
    3,997.14x = 5,515.80 × 2,505
  4. Step 4: Simplify right side
    3,997.14x = 13,817,079
  5. Step 5: Solve for x
    x = 13,817,079/3,997.14
  6. Step 6: Final answer
    x = 3,456.74

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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.