Home / 3,485.35-5,221.21-2,311.86

Finding the Fourth Proportional to 3,485.35, 5,221.21 and 2,311.86

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Solution

The fourth proportional to 3,485.35, 5,221.21 and 2,311.86 is: 3,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.35 : 5,221.21 = 2,311.86 : x
  2. Step 2: Convert to fraction form
    3,485.35/5,221.21 = 2,311.86/x
  3. Step 3: Cross multiply
    3,485.35x = 5,221.21 × 2,311.86
  4. Step 4: Simplify right side
    3,485.35x = 12,070,694.99
  5. Step 5: Solve for x
    x = 12,070,694.99/3,485.35
  6. Step 6: Final answer
    x = 3,463.27

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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.