Home / 3,759.15-5,639.67-1,911.27

Finding the Fourth Proportional to 3,759.15, 5,639.67 and 1,911.27

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Solution

The fourth proportional to 3,759.15, 5,639.67 and 1,911.27 is: 2,867.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.15 : 5,639.67 = 1,911.27 : x
  2. Step 2: Convert to fraction form
    3,759.15/5,639.67 = 1,911.27/x
  3. Step 3: Cross multiply
    3,759.15x = 5,639.67 × 1,911.27
  4. Step 4: Simplify right side
    3,759.15x = 10,778,932.08
  5. Step 5: Solve for x
    x = 10,778,932.08/3,759.15
  6. Step 6: Final answer
    x = 2,867.39

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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.