Home / 3,137.62-4,327.44-2,779.09

Finding the Fourth Proportional to 3,137.62, 4,327.44 and 2,779.09

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Solution

The fourth proportional to 3,137.62, 4,327.44 and 2,779.09 is: 3,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.62 : 4,327.44 = 2,779.09 : x
  2. Step 2: Convert to fraction form
    3,137.62/4,327.44 = 2,779.09/x
  3. Step 3: Cross multiply
    3,137.62x = 4,327.44 × 2,779.09
  4. Step 4: Simplify right side
    3,137.62x = 12,026,363.96
  5. Step 5: Solve for x
    x = 12,026,363.96/3,137.62
  6. Step 6: Final answer
    x = 3,832.96

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1.5x scale

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.