Home / 3,758.96-5,187.56-2,187.44

Finding the Fourth Proportional to 3,758.96, 5,187.56 and 2,187.44

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Solution

The fourth proportional to 3,758.96, 5,187.56 and 2,187.44 is: 3,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.96 : 5,187.56 = 2,187.44 : x
  2. Step 2: Convert to fraction form
    3,758.96/5,187.56 = 2,187.44/x
  3. Step 3: Cross multiply
    3,758.96x = 5,187.56 × 2,187.44
  4. Step 4: Simplify right side
    3,758.96x = 11,347,476.25
  5. Step 5: Solve for x
    x = 11,347,476.25/3,758.96
  6. Step 6: Final answer
    x = 3,018.78

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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.