Home / 3,664.13-5,485.83-3,318.11

Finding the Fourth Proportional to 3,664.13, 5,485.83 and 3,318.11

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Solution

The fourth proportional to 3,664.13, 5,485.83 and 3,318.11 is: 4,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.13 : 5,485.83 = 3,318.11 : x
  2. Step 2: Convert to fraction form
    3,664.13/5,485.83 = 3,318.11/x
  3. Step 3: Cross multiply
    3,664.13x = 5,485.83 × 3,318.11
  4. Step 4: Simplify right side
    3,664.13x = 18,202,587.38
  5. Step 5: Solve for x
    x = 18,202,587.38/3,664.13
  6. Step 6: Final answer
    x = 4,967.78

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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.