Home / 3,195.80-4,787.62-1,876.31

Finding the Fourth Proportional to 3,195.80, 4,787.62 and 1,876.31

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Solution

The fourth proportional to 3,195.80, 4,787.62 and 1,876.31 is: 2,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.80 : 4,787.62 = 1,876.31 : x
  2. Step 2: Convert to fraction form
    3,195.80/4,787.62 = 1,876.31/x
  3. Step 3: Cross multiply
    3,195.80x = 4,787.62 × 1,876.31
  4. Step 4: Simplify right side
    3,195.80x = 8,983,059.28
  5. Step 5: Solve for x
    x = 8,983,059.28/3,195.80
  6. Step 6: Final answer
    x = 2,810.90

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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.