Home / 7,619.54-11,426.49-2,620.89

Finding the Fourth Proportional to 7,619.54, 11,426.49 and 2,620.89

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Solution

The fourth proportional to 7,619.54, 11,426.49 and 2,620.89 is: 3,930.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.54 : 11,426.49 = 2,620.89 : x
  2. Step 2: Convert to fraction form
    7,619.54/11,426.49 = 2,620.89/x
  3. Step 3: Cross multiply
    7,619.54x = 11,426.49 × 2,620.89
  4. Step 4: Simplify right side
    7,619.54x = 29,947,573.38
  5. Step 5: Solve for x
    x = 29,947,573.38/7,619.54
  6. Step 6: Final answer
    x = 3,930.37

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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.