Home / 3,726.20-5,137.94-2,380

Finding the Fourth Proportional to 3,726.20, 5,137.94 and 2,380

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Solution

The fourth proportional to 3,726.20, 5,137.94 and 2,380 is: 3,281.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.20 : 5,137.94 = 2,380 : x
  2. Step 2: Convert to fraction form
    3,726.20/5,137.94 = 2,380/x
  3. Step 3: Cross multiply
    3,726.20x = 5,137.94 × 2,380
  4. Step 4: Simplify right side
    3,726.20x = 12,228,297.20
  5. Step 5: Solve for x
    x = 12,228,297.20/3,726.20
  6. Step 6: Final answer
    x = 3,281.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.