Home / 3,229.20-4,835.57-2,130.21

Finding the Fourth Proportional to 3,229.20, 4,835.57 and 2,130.21

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Solution

The fourth proportional to 3,229.20, 4,835.57 and 2,130.21 is: 3,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.20 : 4,835.57 = 2,130.21 : x
  2. Step 2: Convert to fraction form
    3,229.20/4,835.57 = 2,130.21/x
  3. Step 3: Cross multiply
    3,229.20x = 4,835.57 × 2,130.21
  4. Step 4: Simplify right side
    3,229.20x = 10,300,768.92
  5. Step 5: Solve for x
    x = 10,300,768.92/3,229.20
  6. Step 6: Final answer
    x = 3,189.88

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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.