Home / 7,961.34-11,945.24-3,580.86

Finding the Fourth Proportional to 7,961.34, 11,945.24 and 3,580.86

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Solution

The fourth proportional to 7,961.34, 11,945.24 and 3,580.86 is: 5,372.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.34 : 11,945.24 = 3,580.86 : x
  2. Step 2: Convert to fraction form
    7,961.34/11,945.24 = 3,580.86/x
  3. Step 3: Cross multiply
    7,961.34x = 11,945.24 × 3,580.86
  4. Step 4: Simplify right side
    7,961.34x = 42,774,181.33
  5. Step 5: Solve for x
    x = 42,774,181.33/7,961.34
  6. Step 6: Final answer
    x = 5,372.74

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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.