Home / 3,863.59-5,784.99-3,178.52

Finding the Fourth Proportional to 3,863.59, 5,784.99 and 3,178.52

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Solution

The fourth proportional to 3,863.59, 5,784.99 and 3,178.52 is: 4,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.59 : 5,784.99 = 3,178.52 : x
  2. Step 2: Convert to fraction form
    3,863.59/5,784.99 = 3,178.52/x
  3. Step 3: Cross multiply
    3,863.59x = 5,784.99 × 3,178.52
  4. Step 4: Simplify right side
    3,863.59x = 18,387,720.88
  5. Step 5: Solve for x
    x = 18,387,720.88/3,863.59
  6. Step 6: Final answer
    x = 4,759.24

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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.