Home / 7,489.20-11,231.54-2,222.98

Finding the Fourth Proportional to 7,489.20, 11,231.54 and 2,222.98

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Solution

The fourth proportional to 7,489.20, 11,231.54 and 2,222.98 is: 3,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.20 : 11,231.54 = 2,222.98 : x
  2. Step 2: Convert to fraction form
    7,489.20/11,231.54 = 2,222.98/x
  3. Step 3: Cross multiply
    7,489.20x = 11,231.54 × 2,222.98
  4. Step 4: Simplify right side
    7,489.20x = 24,967,488.79
  5. Step 5: Solve for x
    x = 24,967,488.79/7,489.20
  6. Step 6: Final answer
    x = 3,333.80

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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.