Home / 3,699.61-5,105.38-2,021.03

Finding the Fourth Proportional to 3,699.61, 5,105.38 and 2,021.03

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Solution

The fourth proportional to 3,699.61, 5,105.38 and 2,021.03 is: 2,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.61 : 5,105.38 = 2,021.03 : x
  2. Step 2: Convert to fraction form
    3,699.61/5,105.38 = 2,021.03/x
  3. Step 3: Cross multiply
    3,699.61x = 5,105.38 × 2,021.03
  4. Step 4: Simplify right side
    3,699.61x = 10,318,098.45
  5. Step 5: Solve for x
    x = 10,318,098.45/3,699.61
  6. Step 6: Final answer
    x = 2,788.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.