Home / 2,138.03-3,201.14-1,095.79

Finding the Fourth Proportional to 2,138.03, 3,201.14 and 1,095.79

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Solution

The fourth proportional to 2,138.03, 3,201.14 and 1,095.79 is: 1,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.03 : 3,201.14 = 1,095.79 : x
  2. Step 2: Convert to fraction form
    2,138.03/3,201.14 = 1,095.79/x
  3. Step 3: Cross multiply
    2,138.03x = 3,201.14 × 1,095.79
  4. Step 4: Simplify right side
    2,138.03x = 3,507,763.72
  5. Step 5: Solve for x
    x = 3,507,763.72/2,138.03
  6. Step 6: Final answer
    x = 1,640.65

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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.