Home / 3,945.09-5,917.64-2,480.61

Finding the Fourth Proportional to 3,945.09, 5,917.64 and 2,480.61

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Solution

The fourth proportional to 3,945.09, 5,917.64 and 2,480.61 is: 3,720.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.09 : 5,917.64 = 2,480.61 : x
  2. Step 2: Convert to fraction form
    3,945.09/5,917.64 = 2,480.61/x
  3. Step 3: Cross multiply
    3,945.09x = 5,917.64 × 2,480.61
  4. Step 4: Simplify right side
    3,945.09x = 14,679,344.56
  5. Step 5: Solve for x
    x = 14,679,344.56/3,945.09
  6. Step 6: Final answer
    x = 3,720.92

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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.