Home / 3,486.60-5,237.19-2,939.85

Finding the Fourth Proportional to 3,486.60, 5,237.19 and 2,939.85

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Solution

The fourth proportional to 3,486.60, 5,237.19 and 2,939.85 is: 4,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.60 : 5,237.19 = 2,939.85 : x
  2. Step 2: Convert to fraction form
    3,486.60/5,237.19 = 2,939.85/x
  3. Step 3: Cross multiply
    3,486.60x = 5,237.19 × 2,939.85
  4. Step 4: Simplify right side
    3,486.60x = 15,396,553.02
  5. Step 5: Solve for x
    x = 15,396,553.02/3,486.60
  6. Step 6: Final answer
    x = 4,415.92

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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.