Home / 6,821.56-10,230.60-2,660.20

Finding the Fourth Proportional to 6,821.56, 10,230.60 and 2,660.20

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Solution

The fourth proportional to 6,821.56, 10,230.60 and 2,660.20 is: 3,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.56 : 10,230.60 = 2,660.20 : x
  2. Step 2: Convert to fraction form
    6,821.56/10,230.60 = 2,660.20/x
  3. Step 3: Cross multiply
    6,821.56x = 10,230.60 × 2,660.20
  4. Step 4: Simplify right side
    6,821.56x = 27,215,442.12
  5. Step 5: Solve for x
    x = 27,215,442.12/6,821.56
  6. Step 6: Final answer
    x = 3,989.62

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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.