Home / 3,895.91-5,842.64-1,121.83

Finding the Fourth Proportional to 3,895.91, 5,842.64 and 1,121.83

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Solution

The fourth proportional to 3,895.91, 5,842.64 and 1,121.83 is: 1,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.91 : 5,842.64 = 1,121.83 : x
  2. Step 2: Convert to fraction form
    3,895.91/5,842.64 = 1,121.83/x
  3. Step 3: Cross multiply
    3,895.91x = 5,842.64 × 1,121.83
  4. Step 4: Simplify right side
    3,895.91x = 6,554,437.03
  5. Step 5: Solve for x
    x = 6,554,437.03/3,895.91
  6. Step 6: Final answer
    x = 1,682.39

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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.