Home / 2,106.18-2,906.39-1,161.92

Finding the Fourth Proportional to 2,106.18, 2,906.39 and 1,161.92

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Solution

The fourth proportional to 2,106.18, 2,906.39 and 1,161.92 is: 1,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.18 : 2,906.39 = 1,161.92 : x
  2. Step 2: Convert to fraction form
    2,106.18/2,906.39 = 1,161.92/x
  3. Step 3: Cross multiply
    2,106.18x = 2,906.39 × 1,161.92
  4. Step 4: Simplify right side
    2,106.18x = 3,376,992.67
  5. Step 5: Solve for x
    x = 3,376,992.67/2,106.18
  6. Step 6: Final answer
    x = 1,603.37

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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.