Home / 2,218.20-3,324.60-984.30

Finding the Fourth Proportional to 2,218.20, 3,324.60 and 984.30

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Solution

The fourth proportional to 2,218.20, 3,324.60 and 984.30 is: 1,475.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.20 : 3,324.60 = 984.30 : x
  2. Step 2: Convert to fraction form
    2,218.20/3,324.60 = 984.30/x
  3. Step 3: Cross multiply
    2,218.20x = 3,324.60 × 984.30
  4. Step 4: Simplify right side
    2,218.20x = 3,272,403.78
  5. Step 5: Solve for x
    x = 3,272,403.78/2,218.20
  6. Step 6: Final answer
    x = 1,475.25

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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.