Home / 7,650.94-11,479.81-2,721.39

Finding the Fourth Proportional to 7,650.94, 11,479.81 and 2,721.39

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Solution

The fourth proportional to 7,650.94, 11,479.81 and 2,721.39 is: 4,083.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,650.94 : 11,479.81 = 2,721.39 : x
  2. Step 2: Convert to fraction form
    7,650.94/11,479.81 = 2,721.39/x
  3. Step 3: Cross multiply
    7,650.94x = 11,479.81 × 2,721.39
  4. Step 4: Simplify right side
    7,650.94x = 31,241,040.14
  5. Step 5: Solve for x
    x = 31,241,040.14/7,650.94
  6. Step 6: Final answer
    x = 4,083.29

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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.