Home / 2,787.23-4,180.84-1,142.62

Finding the Fourth Proportional to 2,787.23, 4,180.84 and 1,142.62

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Solution

The fourth proportional to 2,787.23, 4,180.84 and 1,142.62 is: 1,713.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.23 : 4,180.84 = 1,142.62 : x
  2. Step 2: Convert to fraction form
    2,787.23/4,180.84 = 1,142.62/x
  3. Step 3: Cross multiply
    2,787.23x = 4,180.84 × 1,142.62
  4. Step 4: Simplify right side
    2,787.23x = 4,777,124.03
  5. Step 5: Solve for x
    x = 4,777,124.03/2,787.23
  6. Step 6: Final answer
    x = 1,713.93

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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.