Home / 3,221.27-4,830.84-1,245.98

Finding the Fourth Proportional to 3,221.27, 4,830.84 and 1,245.98

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Solution

The fourth proportional to 3,221.27, 4,830.84 and 1,245.98 is: 1,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.27 : 4,830.84 = 1,245.98 : x
  2. Step 2: Convert to fraction form
    3,221.27/4,830.84 = 1,245.98/x
  3. Step 3: Cross multiply
    3,221.27x = 4,830.84 × 1,245.98
  4. Step 4: Simplify right side
    3,221.27x = 6,019,142.10
  5. Step 5: Solve for x
    x = 6,019,142.10/3,221.27
  6. Step 6: Final answer
    x = 1,868.56

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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.