Home / 3,821.64-5,731.62-1,322.68

Finding the Fourth Proportional to 3,821.64, 5,731.62 and 1,322.68

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Solution

The fourth proportional to 3,821.64, 5,731.62 and 1,322.68 is: 1,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.64 : 5,731.62 = 1,322.68 : x
  2. Step 2: Convert to fraction form
    3,821.64/5,731.62 = 1,322.68/x
  3. Step 3: Cross multiply
    3,821.64x = 5,731.62 × 1,322.68
  4. Step 4: Simplify right side
    3,821.64x = 7,581,099.14
  5. Step 5: Solve for x
    x = 7,581,099.14/3,821.64
  6. Step 6: Final answer
    x = 1,983.73

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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.