Home / 6,821.20-10,233.30-2,661.20

Finding the Fourth Proportional to 6,821.20, 10,233.30 and 2,661.20

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Solution

The fourth proportional to 6,821.20, 10,233.30 and 2,661.20 is: 3,992.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.20 : 10,233.30 = 2,661.20 : x
  2. Step 2: Convert to fraction form
    6,821.20/10,233.30 = 2,661.20/x
  3. Step 3: Cross multiply
    6,821.20x = 10,233.30 × 2,661.20
  4. Step 4: Simplify right side
    6,821.20x = 27,232,857.96
  5. Step 5: Solve for x
    x = 27,232,857.96/6,821.20
  6. Step 6: Final answer
    x = 3,992.39

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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.