Home / 3,185.26-4,395.71-1,787.98

Finding the Fourth Proportional to 3,185.26, 4,395.71 and 1,787.98

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Solution

The fourth proportional to 3,185.26, 4,395.71 and 1,787.98 is: 2,467.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.26 : 4,395.71 = 1,787.98 : x
  2. Step 2: Convert to fraction form
    3,185.26/4,395.71 = 1,787.98/x
  3. Step 3: Cross multiply
    3,185.26x = 4,395.71 × 1,787.98
  4. Step 4: Simplify right side
    3,185.26x = 7,859,441.57
  5. Step 5: Solve for x
    x = 7,859,441.57/3,185.26
  6. Step 6: Final answer
    x = 2,467.44

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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.