Home / 3,238.10-4,847.55-2,143.70

Finding the Fourth Proportional to 3,238.10, 4,847.55 and 2,143.70

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Solution

The fourth proportional to 3,238.10, 4,847.55 and 2,143.70 is: 3,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.10 : 4,847.55 = 2,143.70 : x
  2. Step 2: Convert to fraction form
    3,238.10/4,847.55 = 2,143.70/x
  3. Step 3: Cross multiply
    3,238.10x = 4,847.55 × 2,143.70
  4. Step 4: Simplify right side
    3,238.10x = 10,391,692.94
  5. Step 5: Solve for x
    x = 10,391,692.94/3,238.10
  6. Step 6: Final answer
    x = 3,209.19

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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.