Home / 3,868.39-5,806.40-2,020.99

Finding the Fourth Proportional to 3,868.39, 5,806.40 and 2,020.99

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Solution

The fourth proportional to 3,868.39, 5,806.40 and 2,020.99 is: 3,033.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.39 : 5,806.40 = 2,020.99 : x
  2. Step 2: Convert to fraction form
    3,868.39/5,806.40 = 2,020.99/x
  3. Step 3: Cross multiply
    3,868.39x = 5,806.40 × 2,020.99
  4. Step 4: Simplify right side
    3,868.39x = 11,734,676.34
  5. Step 5: Solve for x
    x = 11,734,676.34/3,868.39
  6. Step 6: Final answer
    x = 3,033.48

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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.