Home / 4,880.45-7,324.79-2,109.22

Finding the Fourth Proportional to 4,880.45, 7,324.79 and 2,109.22

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Solution

The fourth proportional to 4,880.45, 7,324.79 and 2,109.22 is: 3,165.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.45 : 7,324.79 = 2,109.22 : x
  2. Step 2: Convert to fraction form
    4,880.45/7,324.79 = 2,109.22/x
  3. Step 3: Cross multiply
    4,880.45x = 7,324.79 × 2,109.22
  4. Step 4: Simplify right side
    4,880.45x = 15,449,593.56
  5. Step 5: Solve for x
    x = 15,449,593.56/4,880.45
  6. Step 6: Final answer
    x = 3,165.61

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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.