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Finding the Fourth Proportional to 3,940.54, 5,880.07 and 3,591.22

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Solution

The fourth proportional to 3,940.54, 5,880.07 and 3,591.22 is: 5,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.54 : 5,880.07 = 3,591.22 : x
  2. Step 2: Convert to fraction form
    3,940.54/5,880.07 = 3,591.22/x
  3. Step 3: Cross multiply
    3,940.54x = 5,880.07 × 3,591.22
  4. Step 4: Simplify right side
    3,940.54x = 21,116,624.99
  5. Step 5: Solve for x
    x = 21,116,624.99/3,940.54
  6. Step 6: Final answer
    x = 5,358.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.