Home / 3,379.86-4,664.66-2,121.26

Finding the Fourth Proportional to 3,379.86, 4,664.66 and 2,121.26

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Solution

The fourth proportional to 3,379.86, 4,664.66 and 2,121.26 is: 2,927.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.86 : 4,664.66 = 2,121.26 : x
  2. Step 2: Convert to fraction form
    3,379.86/4,664.66 = 2,121.26/x
  3. Step 3: Cross multiply
    3,379.86x = 4,664.66 × 2,121.26
  4. Step 4: Simplify right side
    3,379.86x = 9,894,922.74
  5. Step 5: Solve for x
    x = 9,894,922.74/3,379.86
  6. Step 6: Final answer
    x = 2,927.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.