Home / 3,270.12-4,512.57-1,778.03

Finding the Fourth Proportional to 3,270.12, 4,512.57 and 1,778.03

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Solution

The fourth proportional to 3,270.12, 4,512.57 and 1,778.03 is: 2,453.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.12 : 4,512.57 = 1,778.03 : x
  2. Step 2: Convert to fraction form
    3,270.12/4,512.57 = 1,778.03/x
  3. Step 3: Cross multiply
    3,270.12x = 4,512.57 × 1,778.03
  4. Step 4: Simplify right side
    3,270.12x = 8,023,484.84
  5. Step 5: Solve for x
    x = 8,023,484.84/3,270.12
  6. Step 6: Final answer
    x = 2,453.58

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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.