Home / 2,108.70-3,163.05-1,370.59

Finding the Fourth Proportional to 2,108.70, 3,163.05 and 1,370.59

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Solution

The fourth proportional to 2,108.70, 3,163.05 and 1,370.59 is: 2,055.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.70 : 3,163.05 = 1,370.59 : x
  2. Step 2: Convert to fraction form
    2,108.70/3,163.05 = 1,370.59/x
  3. Step 3: Cross multiply
    2,108.70x = 3,163.05 × 1,370.59
  4. Step 4: Simplify right side
    2,108.70x = 4,335,236.79
  5. Step 5: Solve for x
    x = 4,335,236.79/2,108.70
  6. Step 6: Final answer
    x = 2,055.88

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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.