Home / 3,806.85-5,253.27-2,391.27

Finding the Fourth Proportional to 3,806.85, 5,253.27 and 2,391.27

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Solution

The fourth proportional to 3,806.85, 5,253.27 and 2,391.27 is: 3,299.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.85 : 5,253.27 = 2,391.27 : x
  2. Step 2: Convert to fraction form
    3,806.85/5,253.27 = 2,391.27/x
  3. Step 3: Cross multiply
    3,806.85x = 5,253.27 × 2,391.27
  4. Step 4: Simplify right side
    3,806.85x = 12,561,986.95
  5. Step 5: Solve for x
    x = 12,561,986.95/3,806.85
  6. Step 6: Final answer
    x = 3,299.84

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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.