Home / 3,403.20-5,104.85-1,211.87

Finding the Fourth Proportional to 3,403.20, 5,104.85 and 1,211.87

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Solution

The fourth proportional to 3,403.20, 5,104.85 and 1,211.87 is: 1,817.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.20 : 5,104.85 = 1,211.87 : x
  2. Step 2: Convert to fraction form
    3,403.20/5,104.85 = 1,211.87/x
  3. Step 3: Cross multiply
    3,403.20x = 5,104.85 × 1,211.87
  4. Step 4: Simplify right side
    3,403.20x = 6,186,421.27
  5. Step 5: Solve for x
    x = 6,186,421.27/3,403.20
  6. Step 6: Final answer
    x = 1,817.82

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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.