Home / 3,751.32-5,627.67-1,286.39

Finding the Fourth Proportional to 3,751.32, 5,627.67 and 1,286.39

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Solution

The fourth proportional to 3,751.32, 5,627.67 and 1,286.39 is: 1,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.32 : 5,627.67 = 1,286.39 : x
  2. Step 2: Convert to fraction form
    3,751.32/5,627.67 = 1,286.39/x
  3. Step 3: Cross multiply
    3,751.32x = 5,627.67 × 1,286.39
  4. Step 4: Simplify right side
    3,751.32x = 7,239,371.83
  5. Step 5: Solve for x
    x = 7,239,371.83/3,751.32
  6. Step 6: Final answer
    x = 1,929.82

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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.