Home / 2,180.20-3,270.30-1,852.15

Finding the Fourth Proportional to 2,180.20, 3,270.30 and 1,852.15

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Solution

The fourth proportional to 2,180.20, 3,270.30 and 1,852.15 is: 2,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.20 : 3,270.30 = 1,852.15 : x
  2. Step 2: Convert to fraction form
    2,180.20/3,270.30 = 1,852.15/x
  3. Step 3: Cross multiply
    2,180.20x = 3,270.30 × 1,852.15
  4. Step 4: Simplify right side
    2,180.20x = 6,057,086.15
  5. Step 5: Solve for x
    x = 6,057,086.15/2,180.20
  6. Step 6: Final answer
    x = 2,778.23

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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.