Home / 4,998.20-7,490.10-2,222.60

Finding the Fourth Proportional to 4,998.20, 7,490.10 and 2,222.60

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Solution

The fourth proportional to 4,998.20, 7,490.10 and 2,222.60 is: 3,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.20 : 7,490.10 = 2,222.60 : x
  2. Step 2: Convert to fraction form
    4,998.20/7,490.10 = 2,222.60/x
  3. Step 3: Cross multiply
    4,998.20x = 7,490.10 × 2,222.60
  4. Step 4: Simplify right side
    4,998.20x = 16,647,496.26
  5. Step 5: Solve for x
    x = 16,647,496.26/4,998.20
  6. Step 6: Final answer
    x = 3,330.70

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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.