Home / 3,717.88-5,128.78-2,611.96

Finding the Fourth Proportional to 3,717.88, 5,128.78 and 2,611.96

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Solution

The fourth proportional to 3,717.88, 5,128.78 and 2,611.96 is: 3,603.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.88 : 5,128.78 = 2,611.96 : x
  2. Step 2: Convert to fraction form
    3,717.88/5,128.78 = 2,611.96/x
  3. Step 3: Cross multiply
    3,717.88x = 5,128.78 × 2,611.96
  4. Step 4: Simplify right side
    3,717.88x = 13,396,168.21
  5. Step 5: Solve for x
    x = 13,396,168.21/3,717.88
  6. Step 6: Final answer
    x = 3,603.17

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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.