Home / 7,489.40-11,234.10-2,558.60

Finding the Fourth Proportional to 7,489.40, 11,234.10 and 2,558.60

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Solution

The fourth proportional to 7,489.40, 11,234.10 and 2,558.60 is: 3,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.40 : 11,234.10 = 2,558.60 : x
  2. Step 2: Convert to fraction form
    7,489.40/11,234.10 = 2,558.60/x
  3. Step 3: Cross multiply
    7,489.40x = 11,234.10 × 2,558.60
  4. Step 4: Simplify right side
    7,489.40x = 28,743,568.26
  5. Step 5: Solve for x
    x = 28,743,568.26/7,489.40
  6. Step 6: Final answer
    x = 3,837.90

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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.