Home / 7,489.11-11,234.31-2,490.45

Finding the Fourth Proportional to 7,489.11, 11,234.31 and 2,490.45

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Solution

The fourth proportional to 7,489.11, 11,234.31 and 2,490.45 is: 3,735.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.11 : 11,234.31 = 2,490.45 : x
  2. Step 2: Convert to fraction form
    7,489.11/11,234.31 = 2,490.45/x
  3. Step 3: Cross multiply
    7,489.11x = 11,234.31 × 2,490.45
  4. Step 4: Simplify right side
    7,489.11x = 27,978,449.88
  5. Step 5: Solve for x
    x = 27,978,449.88/7,489.11
  6. Step 6: Final answer
    x = 3,735.89

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Double scale
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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.