Home / 2,181.85-3,273.32-621.86

Finding the Fourth Proportional to 2,181.85, 3,273.32 and 621.86

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Solution

The fourth proportional to 2,181.85, 3,273.32 and 621.86 is: 932.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.85 : 3,273.32 = 621.86 : x
  2. Step 2: Convert to fraction form
    2,181.85/3,273.32 = 621.86/x
  3. Step 3: Cross multiply
    2,181.85x = 3,273.32 × 621.86
  4. Step 4: Simplify right side
    2,181.85x = 2,035,531.96
  5. Step 5: Solve for x
    x = 2,035,531.96/2,181.85
  6. Step 6: Final answer
    x = 932.94

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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.