Home / 2,109.09-3,159.96-1,369.44

Finding the Fourth Proportional to 2,109.09, 3,159.96 and 1,369.44

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Solution

The fourth proportional to 2,109.09, 3,159.96 and 1,369.44 is: 2,051.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.09 : 3,159.96 = 1,369.44 : x
  2. Step 2: Convert to fraction form
    2,109.09/3,159.96 = 1,369.44/x
  3. Step 3: Cross multiply
    2,109.09x = 3,159.96 × 1,369.44
  4. Step 4: Simplify right side
    2,109.09x = 4,327,375.62
  5. Step 5: Solve for x
    x = 4,327,375.62/2,109.09
  6. Step 6: Final answer
    x = 2,051.77

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1.5x scale

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.