Home / 3,745.44-5,619.34-1,280.27

Finding the Fourth Proportional to 3,745.44, 5,619.34 and 1,280.27

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Solution

The fourth proportional to 3,745.44, 5,619.34 and 1,280.27 is: 1,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.44 : 5,619.34 = 1,280.27 : x
  2. Step 2: Convert to fraction form
    3,745.44/5,619.34 = 1,280.27/x
  3. Step 3: Cross multiply
    3,745.44x = 5,619.34 × 1,280.27
  4. Step 4: Simplify right side
    3,745.44x = 7,194,288.07
  5. Step 5: Solve for x
    x = 7,194,288.07/3,745.44
  6. Step 6: Final answer
    x = 1,920.81

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1.5x scale

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.