Home / 3,868.17-5,337.83-2,189.92

Finding the Fourth Proportional to 3,868.17, 5,337.83 and 2,189.92

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Solution

The fourth proportional to 3,868.17, 5,337.83 and 2,189.92 is: 3,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.17 : 5,337.83 = 2,189.92 : x
  2. Step 2: Convert to fraction form
    3,868.17/5,337.83 = 2,189.92/x
  3. Step 3: Cross multiply
    3,868.17x = 5,337.83 × 2,189.92
  4. Step 4: Simplify right side
    3,868.17x = 11,689,412.80
  5. Step 5: Solve for x
    x = 11,689,412.80/3,868.17
  6. Step 6: Final answer
    x = 3,021.95

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1.5x scale

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.