Home / 6,821.80-10,228.78-3,310.60

Finding the Fourth Proportional to 6,821.80, 10,228.78 and 3,310.60

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Solution

The fourth proportional to 6,821.80, 10,228.78 and 3,310.60 is: 4,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.80 : 10,228.78 = 3,310.60 : x
  2. Step 2: Convert to fraction form
    6,821.80/10,228.78 = 3,310.60/x
  3. Step 3: Cross multiply
    6,821.80x = 10,228.78 × 3,310.60
  4. Step 4: Simplify right side
    6,821.80x = 33,863,399.07
  5. Step 5: Solve for x
    x = 33,863,399.07/6,821.80
  6. Step 6: Final answer
    x = 4,964.00

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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.