Home / 3,128.27-4,692.40-1,348.61

Finding the Fourth Proportional to 3,128.27, 4,692.40 and 1,348.61

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Solution

The fourth proportional to 3,128.27, 4,692.40 and 1,348.61 is: 2,022.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.27 : 4,692.40 = 1,348.61 : x
  2. Step 2: Convert to fraction form
    3,128.27/4,692.40 = 1,348.61/x
  3. Step 3: Cross multiply
    3,128.27x = 4,692.40 × 1,348.61
  4. Step 4: Simplify right side
    3,128.27x = 6,328,190.73
  5. Step 5: Solve for x
    x = 6,328,190.73/3,128.27
  6. Step 6: Final answer
    x = 2,022.91

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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.