Home / 6,815.31-10,219.26-2,133.30

Finding the Fourth Proportional to 6,815.31, 10,219.26 and 2,133.30

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Solution

The fourth proportional to 6,815.31, 10,219.26 and 2,133.30 is: 3,198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.31 : 10,219.26 = 2,133.30 : x
  2. Step 2: Convert to fraction form
    6,815.31/10,219.26 = 2,133.30/x
  3. Step 3: Cross multiply
    6,815.31x = 10,219.26 × 2,133.30
  4. Step 4: Simplify right side
    6,815.31x = 21,800,747.36
  5. Step 5: Solve for x
    x = 21,800,747.36/6,815.31
  6. Step 6: Final answer
    x = 3,198.79

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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.