Home / 2,108.12-3,161.37-1,456.88

Finding the Fourth Proportional to 2,108.12, 3,161.37 and 1,456.88

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Solution

The fourth proportional to 2,108.12, 3,161.37 and 1,456.88 is: 2,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.12 : 3,161.37 = 1,456.88 : x
  2. Step 2: Convert to fraction form
    2,108.12/3,161.37 = 1,456.88/x
  3. Step 3: Cross multiply
    2,108.12x = 3,161.37 × 1,456.88
  4. Step 4: Simplify right side
    2,108.12x = 4,605,736.73
  5. Step 5: Solve for x
    x = 4,605,736.73/2,108.12
  6. Step 6: Final answer
    x = 2,184.76

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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.