Home / 3,699.85-5,105.83-2,021.26

Finding the Fourth Proportional to 3,699.85, 5,105.83 and 2,021.26

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Solution

The fourth proportional to 3,699.85, 5,105.83 and 2,021.26 is: 2,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.85 : 5,105.83 = 2,021.26 : x
  2. Step 2: Convert to fraction form
    3,699.85/5,105.83 = 2,021.26/x
  3. Step 3: Cross multiply
    3,699.85x = 5,105.83 × 2,021.26
  4. Step 4: Simplify right side
    3,699.85x = 10,320,199.84
  5. Step 5: Solve for x
    x = 10,320,199.84/3,699.85
  6. Step 6: Final answer
    x = 2,789.36

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1.5x scale

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.