Home / 2,108.40-3,163.27-1,012.84

Finding the Fourth Proportional to 2,108.40, 3,163.27 and 1,012.84

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Solution

The fourth proportional to 2,108.40, 3,163.27 and 1,012.84 is: 1,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.40 : 3,163.27 = 1,012.84 : x
  2. Step 2: Convert to fraction form
    2,108.40/3,163.27 = 1,012.84/x
  3. Step 3: Cross multiply
    2,108.40x = 3,163.27 × 1,012.84
  4. Step 4: Simplify right side
    2,108.40x = 3,203,886.39
  5. Step 5: Solve for x
    x = 3,203,886.39/2,108.40
  6. Step 6: Final answer
    x = 1,519.58

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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.