Home / 2,787.59-4,175.30-2,137.56

Finding the Fourth Proportional to 2,787.59, 4,175.30 and 2,137.56

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Solution

The fourth proportional to 2,787.59, 4,175.30 and 2,137.56 is: 3,201.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.59 : 4,175.30 = 2,137.56 : x
  2. Step 2: Convert to fraction form
    2,787.59/4,175.30 = 2,137.56/x
  3. Step 3: Cross multiply
    2,787.59x = 4,175.30 × 2,137.56
  4. Step 4: Simplify right side
    2,787.59x = 8,924,959.61
  5. Step 5: Solve for x
    x = 8,924,959.61/2,787.59
  6. Step 6: Final answer
    x = 3,201.68

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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.