Home / 6,820.31-10,230.46-2,140.73

Finding the Fourth Proportional to 6,820.31, 10,230.46 and 2,140.73

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Solution

The fourth proportional to 6,820.31, 10,230.46 and 2,140.73 is: 3,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.31 : 10,230.46 = 2,140.73 : x
  2. Step 2: Convert to fraction form
    6,820.31/10,230.46 = 2,140.73/x
  3. Step 3: Cross multiply
    6,820.31x = 10,230.46 × 2,140.73
  4. Step 4: Simplify right side
    6,820.31x = 21,900,601.48
  5. Step 5: Solve for x
    x = 21,900,601.48/6,820.31
  6. Step 6: Final answer
    x = 3,211.09

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Similar ratio
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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.