Home / 2,758.32-4,131.96-1,662.08

Finding the Fourth Proportional to 2,758.32, 4,131.96 and 1,662.08

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Solution

The fourth proportional to 2,758.32, 4,131.96 and 1,662.08 is: 2,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.32 : 4,131.96 = 1,662.08 : x
  2. Step 2: Convert to fraction form
    2,758.32/4,131.96 = 1,662.08/x
  3. Step 3: Cross multiply
    2,758.32x = 4,131.96 × 1,662.08
  4. Step 4: Simplify right side
    2,758.32x = 6,867,648.08
  5. Step 5: Solve for x
    x = 6,867,648.08/2,758.32
  6. Step 6: Final answer
    x = 2,489.79

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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.