Home / 3,963.64-5,934.51-2,986.78

Finding the Fourth Proportional to 3,963.64, 5,934.51 and 2,986.78

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Solution

The fourth proportional to 3,963.64, 5,934.51 and 2,986.78 is: 4,471.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.64 : 5,934.51 = 2,986.78 : x
  2. Step 2: Convert to fraction form
    3,963.64/5,934.51 = 2,986.78/x
  3. Step 3: Cross multiply
    3,963.64x = 5,934.51 × 2,986.78
  4. Step 4: Simplify right side
    3,963.64x = 17,725,075.78
  5. Step 5: Solve for x
    x = 17,725,075.78/3,963.64
  6. Step 6: Final answer
    x = 4,471.92

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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.