Home / 3,212.29-4,818.39-1,020.61

Finding the Fourth Proportional to 3,212.29, 4,818.39 and 1,020.61

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Solution

The fourth proportional to 3,212.29, 4,818.39 and 1,020.61 is: 1,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.29 : 4,818.39 = 1,020.61 : x
  2. Step 2: Convert to fraction form
    3,212.29/4,818.39 = 1,020.61/x
  3. Step 3: Cross multiply
    3,212.29x = 4,818.39 × 1,020.61
  4. Step 4: Simplify right side
    3,212.29x = 4,917,697.02
  5. Step 5: Solve for x
    x = 4,917,697.02/3,212.29
  6. Step 6: Final answer
    x = 1,530.90

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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.