Home / 3,286.18-4,930.27-1,971.39

Finding the Fourth Proportional to 3,286.18, 4,930.27 and 1,971.39

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Solution

The fourth proportional to 3,286.18, 4,930.27 and 1,971.39 is: 2,957.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.18 : 4,930.27 = 1,971.39 : x
  2. Step 2: Convert to fraction form
    3,286.18/4,930.27 = 1,971.39/x
  3. Step 3: Cross multiply
    3,286.18x = 4,930.27 × 1,971.39
  4. Step 4: Simplify right side
    3,286.18x = 9,719,484.98
  5. Step 5: Solve for x
    x = 9,719,484.98/3,286.18
  6. Step 6: Final answer
    x = 2,957.68

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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.