Home / 2,106.21-2,906.51-1,161.97

Finding the Fourth Proportional to 2,106.21, 2,906.51 and 1,161.97

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Solution

The fourth proportional to 2,106.21, 2,906.51 and 1,161.97 is: 1,603.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.21 : 2,906.51 = 1,161.97 : x
  2. Step 2: Convert to fraction form
    2,106.21/2,906.51 = 1,161.97/x
  3. Step 3: Cross multiply
    2,106.21x = 2,906.51 × 1,161.97
  4. Step 4: Simplify right side
    2,106.21x = 3,377,277.42
  5. Step 5: Solve for x
    x = 3,377,277.42/2,106.21
  6. Step 6: Final answer
    x = 1,603.49

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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.