Home / 3,911.20-5,868.88-1,963.36

Finding the Fourth Proportional to 3,911.20, 5,868.88 and 1,963.36

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Solution

The fourth proportional to 3,911.20, 5,868.88 and 1,963.36 is: 2,946.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.20 : 5,868.88 = 1,963.36 : x
  2. Step 2: Convert to fraction form
    3,911.20/5,868.88 = 1,963.36/x
  3. Step 3: Cross multiply
    3,911.20x = 5,868.88 × 1,963.36
  4. Step 4: Simplify right side
    3,911.20x = 11,522,724.24
  5. Step 5: Solve for x
    x = 11,522,724.24/3,911.20
  6. Step 6: Final answer
    x = 2,946.08

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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.