Home / 1,745.25-2,408.49-999.44

Finding the Fourth Proportional to 1,745.25, 2,408.49 and 999.44

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Solution

The fourth proportional to 1,745.25, 2,408.49 and 999.44 is: 1,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.25 : 2,408.49 = 999.44 : x
  2. Step 2: Convert to fraction form
    1,745.25/2,408.49 = 999.44/x
  3. Step 3: Cross multiply
    1,745.25x = 2,408.49 × 999.44
  4. Step 4: Simplify right side
    1,745.25x = 2,407,129.20
  5. Step 5: Solve for x
    x = 2,407,129.20/1,745.25
  6. Step 6: Final answer
    x = 1,379.25

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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.