Home / 2,144.20-3,216.30-1,625.80

Finding the Fourth Proportional to 2,144.20, 3,216.30 and 1,625.80

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Solution

The fourth proportional to 2,144.20, 3,216.30 and 1,625.80 is: 2,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.20 : 3,216.30 = 1,625.80 : x
  2. Step 2: Convert to fraction form
    2,144.20/3,216.30 = 1,625.80/x
  3. Step 3: Cross multiply
    2,144.20x = 3,216.30 × 1,625.80
  4. Step 4: Simplify right side
    2,144.20x = 5,229,060.54
  5. Step 5: Solve for x
    x = 5,229,060.54/2,144.20
  6. Step 6: Final answer
    x = 2,438.70

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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.