Home / 6,813.87-10,219.79-2,132.79

Finding the Fourth Proportional to 6,813.87, 10,219.79 and 2,132.79

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Solution

The fourth proportional to 6,813.87, 10,219.79 and 2,132.79 is: 3,198.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.87 : 10,219.79 = 2,132.79 : x
  2. Step 2: Convert to fraction form
    6,813.87/10,219.79 = 2,132.79/x
  3. Step 3: Cross multiply
    6,813.87x = 10,219.79 × 2,132.79
  4. Step 4: Simplify right side
    6,813.87x = 21,796,655.25
  5. Step 5: Solve for x
    x = 21,796,655.25/6,813.87
  6. Step 6: Final answer
    x = 3,198.87

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1.5x scale

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.