Home / 3,717.33-5,129.81-2,102.09

Finding the Fourth Proportional to 3,717.33, 5,129.81 and 2,102.09

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Solution

The fourth proportional to 3,717.33, 5,129.81 and 2,102.09 is: 2,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.33 : 5,129.81 = 2,102.09 : x
  2. Step 2: Convert to fraction form
    3,717.33/5,129.81 = 2,102.09/x
  3. Step 3: Cross multiply
    3,717.33x = 5,129.81 × 2,102.09
  4. Step 4: Simplify right side
    3,717.33x = 10,783,286.14
  5. Step 5: Solve for x
    x = 10,783,286.14/3,717.33
  6. Step 6: Final answer
    x = 2,900.81

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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.