Home / 3,821.04-5,724.08-2,172.64

Finding the Fourth Proportional to 3,821.04, 5,724.08 and 2,172.64

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Solution

The fourth proportional to 3,821.04, 5,724.08 and 2,172.64 is: 3,254.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.04 : 5,724.08 = 2,172.64 : x
  2. Step 2: Convert to fraction form
    3,821.04/5,724.08 = 2,172.64/x
  3. Step 3: Cross multiply
    3,821.04x = 5,724.08 × 2,172.64
  4. Step 4: Simplify right side
    3,821.04x = 12,436,365.17
  5. Step 5: Solve for x
    x = 12,436,365.17/3,821.04
  6. Step 6: Final answer
    x = 3,254.71

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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.