Home / 3,872.82-5,345.03-2,194.89

Finding the Fourth Proportional to 3,872.82, 5,345.03 and 2,194.89

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Solution

The fourth proportional to 3,872.82, 5,345.03 and 2,194.89 is: 3,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.82 : 5,345.03 = 2,194.89 : x
  2. Step 2: Convert to fraction form
    3,872.82/5,345.03 = 2,194.89/x
  3. Step 3: Cross multiply
    3,872.82x = 5,345.03 × 2,194.89
  4. Step 4: Simplify right side
    3,872.82x = 11,731,741.92
  5. Step 5: Solve for x
    x = 11,731,741.92/3,872.82
  6. Step 6: Final answer
    x = 3,029.25

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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.