Home / 3,917.97-5,872.83-1,284.79

Finding the Fourth Proportional to 3,917.97, 5,872.83 and 1,284.79

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Solution

The fourth proportional to 3,917.97, 5,872.83 and 1,284.79 is: 1,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.97 : 5,872.83 = 1,284.79 : x
  2. Step 2: Convert to fraction form
    3,917.97/5,872.83 = 1,284.79/x
  3. Step 3: Cross multiply
    3,917.97x = 5,872.83 × 1,284.79
  4. Step 4: Simplify right side
    3,917.97x = 7,545,332.15
  5. Step 5: Solve for x
    x = 7,545,332.15/3,917.97
  6. Step 6: Final answer
    x = 1,925.83

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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.