Home / 3,963.78-5,469.93-2,392.02

Finding the Fourth Proportional to 3,963.78, 5,469.93 and 2,392.02

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Solution

The fourth proportional to 3,963.78, 5,469.93 and 2,392.02 is: 3,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.78 : 5,469.93 = 2,392.02 : x
  2. Step 2: Convert to fraction form
    3,963.78/5,469.93 = 2,392.02/x
  3. Step 3: Cross multiply
    3,963.78x = 5,469.93 × 2,392.02
  4. Step 4: Simplify right side
    3,963.78x = 13,084,181.96
  5. Step 5: Solve for x
    x = 13,084,181.96/3,963.78
  6. Step 6: Final answer
    x = 3,300.94

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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.