Home / 2,013.21-3,019.82-1,282.05

Finding the Fourth Proportional to 2,013.21, 3,019.82 and 1,282.05

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Solution

The fourth proportional to 2,013.21, 3,019.82 and 1,282.05 is: 1,923.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.21 : 3,019.82 = 1,282.05 : x
  2. Step 2: Convert to fraction form
    2,013.21/3,019.82 = 1,282.05/x
  3. Step 3: Cross multiply
    2,013.21x = 3,019.82 × 1,282.05
  4. Step 4: Simplify right side
    2,013.21x = 3,871,553.82
  5. Step 5: Solve for x
    x = 3,871,553.82/2,013.21
  6. Step 6: Final answer
    x = 1,923.08

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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.