Home / 3,286.35-4,929.05-1,338.10

Finding the Fourth Proportional to 3,286.35, 4,929.05 and 1,338.10

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Solution

The fourth proportional to 3,286.35, 4,929.05 and 1,338.10 is: 2,006.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.35 : 4,929.05 = 1,338.10 : x
  2. Step 2: Convert to fraction form
    3,286.35/4,929.05 = 1,338.10/x
  3. Step 3: Cross multiply
    3,286.35x = 4,929.05 × 1,338.10
  4. Step 4: Simplify right side
    3,286.35x = 6,595,561.81
  5. Step 5: Solve for x
    x = 6,595,561.81/3,286.35
  6. Step 6: Final answer
    x = 2,006.96

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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.