Home / 6,821.81-10,230.98-2,660.45

Finding the Fourth Proportional to 6,821.81, 10,230.98 and 2,660.45

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Solution

The fourth proportional to 6,821.81, 10,230.98 and 2,660.45 is: 3,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.81 : 10,230.98 = 2,660.45 : x
  2. Step 2: Convert to fraction form
    6,821.81/10,230.98 = 2,660.45/x
  3. Step 3: Cross multiply
    6,821.81x = 10,230.98 × 2,660.45
  4. Step 4: Simplify right side
    6,821.81x = 27,218,997.44
  5. Step 5: Solve for x
    x = 27,218,997.44/6,821.81
  6. Step 6: Final answer
    x = 3,990.00

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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.