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Finding the Fourth Proportional to 2,058.25, 3,087.38 and 519.25

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Solution

The fourth proportional to 2,058.25, 3,087.38 and 519.25 is: 778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.25 : 3,087.38 = 519.25 : x
  2. Step 2: Convert to fraction form
    2,058.25/3,087.38 = 519.25/x
  3. Step 3: Cross multiply
    2,058.25x = 3,087.38 × 519.25
  4. Step 4: Simplify right side
    2,058.25x = 1,603,122.07
  5. Step 5: Solve for x
    x = 1,603,122.07/2,058.25
  6. Step 6: Final answer
    x = 778.88

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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.