Home / 3,403.55-5,102.92-1,321.82

Finding the Fourth Proportional to 3,403.55, 5,102.92 and 1,321.82

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Solution

The fourth proportional to 3,403.55, 5,102.92 and 1,321.82 is: 1,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.55 : 5,102.92 = 1,321.82 : x
  2. Step 2: Convert to fraction form
    3,403.55/5,102.92 = 1,321.82/x
  3. Step 3: Cross multiply
    3,403.55x = 5,102.92 × 1,321.82
  4. Step 4: Simplify right side
    3,403.55x = 6,745,145.02
  5. Step 5: Solve for x
    x = 6,745,145.02/3,403.55
  6. Step 6: Final answer
    x = 1,981.80

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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.