Home / 2,189.66-3,021.79-1,195.00

Finding the Fourth Proportional to 2,189.66, 3,021.79 and 1,195.00

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Solution

The fourth proportional to 2,189.66, 3,021.79 and 1,195.00 is: 1,649.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.66 : 3,021.79 = 1,195.00 : x
  2. Step 2: Convert to fraction form
    2,189.66/3,021.79 = 1,195.00/x
  3. Step 3: Cross multiply
    2,189.66x = 3,021.79 × 1,195.00
  4. Step 4: Simplify right side
    2,189.66x = 3,611,033.58
  5. Step 5: Solve for x
    x = 3,611,033.58/2,189.66
  6. Step 6: Final answer
    x = 1,649.13

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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.