Home / 3,106.38-4,659.58-2,129.52

Finding the Fourth Proportional to 3,106.38, 4,659.58 and 2,129.52

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Solution

The fourth proportional to 3,106.38, 4,659.58 and 2,129.52 is: 3,194.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.38 : 4,659.58 = 2,129.52 : x
  2. Step 2: Convert to fraction form
    3,106.38/4,659.58 = 2,129.52/x
  3. Step 3: Cross multiply
    3,106.38x = 4,659.58 × 2,129.52
  4. Step 4: Simplify right side
    3,106.38x = 9,922,676.96
  5. Step 5: Solve for x
    x = 9,922,676.96/3,106.38
  6. Step 6: Final answer
    x = 3,194.29

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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.