Home / 3,270.16-4,512.83-1,778.09

Finding the Fourth Proportional to 3,270.16, 4,512.83 and 1,778.09

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Solution

The fourth proportional to 3,270.16, 4,512.83 and 1,778.09 is: 2,453.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.16 : 4,512.83 = 1,778.09 : x
  2. Step 2: Convert to fraction form
    3,270.16/4,512.83 = 1,778.09/x
  3. Step 3: Cross multiply
    3,270.16x = 4,512.83 × 1,778.09
  4. Step 4: Simplify right side
    3,270.16x = 8,024,217.89
  5. Step 5: Solve for x
    x = 8,024,217.89/3,270.16
  6. Step 6: Final answer
    x = 2,453.77

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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.