Home / 3,692.10-5,089.71-2,806.38

Finding the Fourth Proportional to 3,692.10, 5,089.71 and 2,806.38

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Solution

The fourth proportional to 3,692.10, 5,089.71 and 2,806.38 is: 3,868.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.10 : 5,089.71 = 2,806.38 : x
  2. Step 2: Convert to fraction form
    3,692.10/5,089.71 = 2,806.38/x
  3. Step 3: Cross multiply
    3,692.10x = 5,089.71 × 2,806.38
  4. Step 4: Simplify right side
    3,692.10x = 14,283,660.35
  5. Step 5: Solve for x
    x = 14,283,660.35/3,692.10
  6. Step 6: Final answer
    x = 3,868.71

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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.