Home / 3,789.84-5,679.24-2,137.95

Finding the Fourth Proportional to 3,789.84, 5,679.24 and 2,137.95

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Solution

The fourth proportional to 3,789.84, 5,679.24 and 2,137.95 is: 3,203.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.84 : 5,679.24 = 2,137.95 : x
  2. Step 2: Convert to fraction form
    3,789.84/5,679.24 = 2,137.95/x
  3. Step 3: Cross multiply
    3,789.84x = 5,679.24 × 2,137.95
  4. Step 4: Simplify right side
    3,789.84x = 12,141,931.16
  5. Step 5: Solve for x
    x = 12,141,931.16/3,789.84
  6. Step 6: Final answer
    x = 3,203.81

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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.