Home / 2,006.49-3,008.21-1,388.42

Finding the Fourth Proportional to 2,006.49, 3,008.21 and 1,388.42

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Solution

The fourth proportional to 2,006.49, 3,008.21 and 1,388.42 is: 2,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.49 : 3,008.21 = 1,388.42 : x
  2. Step 2: Convert to fraction form
    2,006.49/3,008.21 = 1,388.42/x
  3. Step 3: Cross multiply
    2,006.49x = 3,008.21 × 1,388.42
  4. Step 4: Simplify right side
    2,006.49x = 4,176,636.95
  5. Step 5: Solve for x
    x = 4,176,636.95/2,006.49
  6. Step 6: Final answer
    x = 2,081.56

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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.