Home / 7,428.78-11,144.79-2,234.25

Finding the Fourth Proportional to 7,428.78, 11,144.79 and 2,234.25

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Solution

The fourth proportional to 7,428.78, 11,144.79 and 2,234.25 is: 3,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.78 : 11,144.79 = 2,234.25 : x
  2. Step 2: Convert to fraction form
    7,428.78/11,144.79 = 2,234.25/x
  3. Step 3: Cross multiply
    7,428.78x = 11,144.79 × 2,234.25
  4. Step 4: Simplify right side
    7,428.78x = 24,900,247.06
  5. Step 5: Solve for x
    x = 24,900,247.06/7,428.78
  6. Step 6: Final answer
    x = 3,351.86

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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.