Home / 2,106-3,159.72-1,180.44

Finding the Fourth Proportional to 2,106, 3,159.72 and 1,180.44

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Solution

The fourth proportional to 2,106, 3,159.72 and 1,180.44 is: 1,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106 : 3,159.72 = 1,180.44 : x
  2. Step 2: Convert to fraction form
    2,106/3,159.72 = 1,180.44/x
  3. Step 3: Cross multiply
    2,106x = 3,159.72 × 1,180.44
  4. Step 4: Simplify right side
    2,106x = 3,729,859.88
  5. Step 5: Solve for x
    x = 3,729,859.88/2,106
  6. Step 6: Final answer
    x = 1,771.06

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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.