Home / 2,120.44-2,926.50-1,189

Finding the Fourth Proportional to 2,120.44, 2,926.50 and 1,189

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Solution

The fourth proportional to 2,120.44, 2,926.50 and 1,189 is: 1,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.44 : 2,926.50 = 1,189 : x
  2. Step 2: Convert to fraction form
    2,120.44/2,926.50 = 1,189/x
  3. Step 3: Cross multiply
    2,120.44x = 2,926.50 × 1,189
  4. Step 4: Simplify right side
    2,120.44x = 3,479,608.50
  5. Step 5: Solve for x
    x = 3,479,608.50/2,120.44
  6. Step 6: Final answer
    x = 1,640.98

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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.