Home / 3,758.88-5,187.42-2,187.48

Finding the Fourth Proportional to 3,758.88, 5,187.42 and 2,187.48

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Solution

The fourth proportional to 3,758.88, 5,187.42 and 2,187.48 is: 3,018.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.88 : 5,187.42 = 2,187.48 : x
  2. Step 2: Convert to fraction form
    3,758.88/5,187.42 = 2,187.48/x
  3. Step 3: Cross multiply
    3,758.88x = 5,187.42 × 2,187.48
  4. Step 4: Simplify right side
    3,758.88x = 11,347,377.50
  5. Step 5: Solve for x
    x = 11,347,377.50/3,758.88
  6. Step 6: Final answer
    x = 3,018.82

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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.