Home / 7,578.79-11,362.71-3,193.85

Finding the Fourth Proportional to 7,578.79, 11,362.71 and 3,193.85

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Solution

The fourth proportional to 7,578.79, 11,362.71 and 3,193.85 is: 4,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.79 : 11,362.71 = 3,193.85 : x
  2. Step 2: Convert to fraction form
    7,578.79/11,362.71 = 3,193.85/x
  3. Step 3: Cross multiply
    7,578.79x = 11,362.71 × 3,193.85
  4. Step 4: Simplify right side
    7,578.79x = 36,290,831.72
  5. Step 5: Solve for x
    x = 36,290,831.72/7,578.79
  6. Step 6: Final answer
    x = 4,788.47

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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.