Home / 2,106.08-2,906.43-1,161.90

Finding the Fourth Proportional to 2,106.08, 2,906.43 and 1,161.90

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Solution

The fourth proportional to 2,106.08, 2,906.43 and 1,161.90 is: 1,603.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.08 : 2,906.43 = 1,161.90 : x
  2. Step 2: Convert to fraction form
    2,106.08/2,906.43 = 1,161.90/x
  3. Step 3: Cross multiply
    2,106.08x = 2,906.43 × 1,161.90
  4. Step 4: Simplify right side
    2,106.08x = 3,376,970.12
  5. Step 5: Solve for x
    x = 3,376,970.12/2,106.08
  6. Step 6: Final answer
    x = 1,603.44

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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.