Home / 3,787.92-5,682.64-1,322.08

Finding the Fourth Proportional to 3,787.92, 5,682.64 and 1,322.08

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Solution

The fourth proportional to 3,787.92, 5,682.64 and 1,322.08 is: 1,983.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.92 : 5,682.64 = 1,322.08 : x
  2. Step 2: Convert to fraction form
    3,787.92/5,682.64 = 1,322.08/x
  3. Step 3: Cross multiply
    3,787.92x = 5,682.64 × 1,322.08
  4. Step 4: Simplify right side
    3,787.92x = 7,512,904.69
  5. Step 5: Solve for x
    x = 7,512,904.69/3,787.92
  6. Step 6: Final answer
    x = 1,983.39

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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.