Home / 7,819.57-11,729.41-2,625.45

Finding the Fourth Proportional to 7,819.57, 11,729.41 and 2,625.45

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Solution

The fourth proportional to 7,819.57, 11,729.41 and 2,625.45 is: 3,938.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.57 : 11,729.41 = 2,625.45 : x
  2. Step 2: Convert to fraction form
    7,819.57/11,729.41 = 2,625.45/x
  3. Step 3: Cross multiply
    7,819.57x = 11,729.41 × 2,625.45
  4. Step 4: Simplify right side
    7,819.57x = 30,794,928.94
  5. Step 5: Solve for x
    x = 30,794,928.94/7,819.57
  6. Step 6: Final answer
    x = 3,938.19

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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.