Home / 3,960.43-5,465.78-2,388.49

Finding the Fourth Proportional to 3,960.43, 5,465.78 and 2,388.49

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Solution

The fourth proportional to 3,960.43, 5,465.78 and 2,388.49 is: 3,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.43 : 5,465.78 = 2,388.49 : x
  2. Step 2: Convert to fraction form
    3,960.43/5,465.78 = 2,388.49/x
  3. Step 3: Cross multiply
    3,960.43x = 5,465.78 × 2,388.49
  4. Step 4: Simplify right side
    3,960.43x = 13,054,960.87
  5. Step 5: Solve for x
    x = 13,054,960.87/3,960.43
  6. Step 6: Final answer
    x = 3,296.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.