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Finding the Fourth Proportional to 3,745.92, 5,169.60 and 2,089.92

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Solution

The fourth proportional to 3,745.92, 5,169.60 and 2,089.92 is: 2,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.92 : 5,169.60 = 2,089.92 : x
  2. Step 2: Convert to fraction form
    3,745.92/5,169.60 = 2,089.92/x
  3. Step 3: Cross multiply
    3,745.92x = 5,169.60 × 2,089.92
  4. Step 4: Simplify right side
    3,745.92x = 10,804,050.43
  5. Step 5: Solve for x
    x = 10,804,050.43/3,745.92
  6. Step 6: Final answer
    x = 2,884.22

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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.