Home / 3,390.21-5,076.68-2,087.73

Finding the Fourth Proportional to 3,390.21, 5,076.68 and 2,087.73

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Solution

The fourth proportional to 3,390.21, 5,076.68 and 2,087.73 is: 3,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.21 : 5,076.68 = 2,087.73 : x
  2. Step 2: Convert to fraction form
    3,390.21/5,076.68 = 2,087.73/x
  3. Step 3: Cross multiply
    3,390.21x = 5,076.68 × 2,087.73
  4. Step 4: Simplify right side
    3,390.21x = 10,598,726.70
  5. Step 5: Solve for x
    x = 10,598,726.70/3,390.21
  6. Step 6: Final answer
    x = 3,126.27

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1.5x scale

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.