Home / 3,836.39-5,751.45-1,988.04

Finding the Fourth Proportional to 3,836.39, 5,751.45 and 1,988.04

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Solution

The fourth proportional to 3,836.39, 5,751.45 and 1,988.04 is: 2,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.39 : 5,751.45 = 1,988.04 : x
  2. Step 2: Convert to fraction form
    3,836.39/5,751.45 = 1,988.04/x
  3. Step 3: Cross multiply
    3,836.39x = 5,751.45 × 1,988.04
  4. Step 4: Simplify right side
    3,836.39x = 11,434,112.66
  5. Step 5: Solve for x
    x = 11,434,112.66/3,836.39
  6. Step 6: Final answer
    x = 2,980.44

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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.