Home / 3,270.60-4,513.47-1,778.56

Finding the Fourth Proportional to 3,270.60, 4,513.47 and 1,778.56

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Solution

The fourth proportional to 3,270.60, 4,513.47 and 1,778.56 is: 2,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.60 : 4,513.47 = 1,778.56 : x
  2. Step 2: Convert to fraction form
    3,270.60/4,513.47 = 1,778.56/x
  3. Step 3: Cross multiply
    3,270.60x = 4,513.47 × 1,778.56
  4. Step 4: Simplify right side
    3,270.60x = 8,027,469.25
  5. Step 5: Solve for x
    x = 8,027,469.25/3,270.60
  6. Step 6: Final answer
    x = 2,454.43

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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.