Home / 3,420.81-5,127.00-2,724.61

Finding the Fourth Proportional to 3,420.81, 5,127.00 and 2,724.61

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Solution

The fourth proportional to 3,420.81, 5,127.00 and 2,724.61 is: 4,083.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.81 : 5,127.00 = 2,724.61 : x
  2. Step 2: Convert to fraction form
    3,420.81/5,127.00 = 2,724.61/x
  3. Step 3: Cross multiply
    3,420.81x = 5,127.00 × 2,724.61
  4. Step 4: Simplify right side
    3,420.81x = 13,969,076.47
  5. Step 5: Solve for x
    x = 13,969,076.47/3,420.81
  6. Step 6: Final answer
    x = 4,083.56

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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.