Home / 1,745.33-2,615.68-1,280.94

Finding the Fourth Proportional to 1,745.33, 2,615.68 and 1,280.94

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Solution

The fourth proportional to 1,745.33, 2,615.68 and 1,280.94 is: 1,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.33 : 2,615.68 = 1,280.94 : x
  2. Step 2: Convert to fraction form
    1,745.33/2,615.68 = 1,280.94/x
  3. Step 3: Cross multiply
    1,745.33x = 2,615.68 × 1,280.94
  4. Step 4: Simplify right side
    1,745.33x = 3,350,520.93
  5. Step 5: Solve for x
    x = 3,350,520.93/1,745.33
  6. Step 6: Final answer
    x = 1,919.71

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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.