Home / 3,456.91-5,185.37-1,265.86

Finding the Fourth Proportional to 3,456.91, 5,185.37 and 1,265.86

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Solution

The fourth proportional to 3,456.91, 5,185.37 and 1,265.86 is: 1,898.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.91 : 5,185.37 = 1,265.86 : x
  2. Step 2: Convert to fraction form
    3,456.91/5,185.37 = 1,265.86/x
  3. Step 3: Cross multiply
    3,456.91x = 5,185.37 × 1,265.86
  4. Step 4: Simplify right side
    3,456.91x = 6,563,952.47
  5. Step 5: Solve for x
    x = 6,563,952.47/3,456.91
  6. Step 6: Final answer
    x = 1,898.79

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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.