Home / 2,906.86-4,012.46-1,787.85

Finding the Fourth Proportional to 2,906.86, 4,012.46 and 1,787.85

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Solution

The fourth proportional to 2,906.86, 4,012.46 and 1,787.85 is: 2,467.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.86 : 4,012.46 = 1,787.85 : x
  2. Step 2: Convert to fraction form
    2,906.86/4,012.46 = 1,787.85/x
  3. Step 3: Cross multiply
    2,906.86x = 4,012.46 × 1,787.85
  4. Step 4: Simplify right side
    2,906.86x = 7,173,676.61
  5. Step 5: Solve for x
    x = 7,173,676.61/2,906.86
  6. Step 6: Final answer
    x = 2,467.84

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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.