Home / 6,928.87-10,391.99-1,863.13

Finding the Fourth Proportional to 6,928.87, 10,391.99 and 1,863.13

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Solution

The fourth proportional to 6,928.87, 10,391.99 and 1,863.13 is: 2,794.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.87 : 10,391.99 = 1,863.13 : x
  2. Step 2: Convert to fraction form
    6,928.87/10,391.99 = 1,863.13/x
  3. Step 3: Cross multiply
    6,928.87x = 10,391.99 × 1,863.13
  4. Step 4: Simplify right side
    6,928.87x = 19,361,628.33
  5. Step 5: Solve for x
    x = 19,361,628.33/6,928.87
  6. Step 6: Final answer
    x = 2,794.34

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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.