Home / 3,816.06-5,724.18-2,160.78

Finding the Fourth Proportional to 3,816.06, 5,724.18 and 2,160.78

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Solution

The fourth proportional to 3,816.06, 5,724.18 and 2,160.78 is: 3,241.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.06 : 5,724.18 = 2,160.78 : x
  2. Step 2: Convert to fraction form
    3,816.06/5,724.18 = 2,160.78/x
  3. Step 3: Cross multiply
    3,816.06x = 5,724.18 × 2,160.78
  4. Step 4: Simplify right side
    3,816.06x = 12,368,693.66
  5. Step 5: Solve for x
    x = 12,368,693.66/3,816.06
  6. Step 6: Final answer
    x = 3,241.22

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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.