Home / 3,239.20-4,468.08-2,119.60

Finding the Fourth Proportional to 3,239.20, 4,468.08 and 2,119.60

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Solution

The fourth proportional to 3,239.20, 4,468.08 and 2,119.60 is: 2,923.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.20 : 4,468.08 = 2,119.60 : x
  2. Step 2: Convert to fraction form
    3,239.20/4,468.08 = 2,119.60/x
  3. Step 3: Cross multiply
    3,239.20x = 4,468.08 × 2,119.60
  4. Step 4: Simplify right side
    3,239.20x = 9,470,542.37
  5. Step 5: Solve for x
    x = 9,470,542.37/3,239.20
  6. Step 6: Final answer
    x = 2,923.73

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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.