Home / 3,201.75-4,798.44-1,640.43

Finding the Fourth Proportional to 3,201.75, 4,798.44 and 1,640.43

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Solution

The fourth proportional to 3,201.75, 4,798.44 and 1,640.43 is: 2,458.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.75 : 4,798.44 = 1,640.43 : x
  2. Step 2: Convert to fraction form
    3,201.75/4,798.44 = 1,640.43/x
  3. Step 3: Cross multiply
    3,201.75x = 4,798.44 × 1,640.43
  4. Step 4: Simplify right side
    3,201.75x = 7,871,504.93
  5. Step 5: Solve for x
    x = 7,871,504.93/3,201.75
  6. Step 6: Final answer
    x = 2,458.50

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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.