Home / 2,189.37-3,021.72-1,305.23

Finding the Fourth Proportional to 2,189.37, 3,021.72 and 1,305.23

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Solution

The fourth proportional to 2,189.37, 3,021.72 and 1,305.23 is: 1,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.37 : 3,021.72 = 1,305.23 : x
  2. Step 2: Convert to fraction form
    2,189.37/3,021.72 = 1,305.23/x
  3. Step 3: Cross multiply
    2,189.37x = 3,021.72 × 1,305.23
  4. Step 4: Simplify right side
    2,189.37x = 3,944,039.60
  5. Step 5: Solve for x
    x = 3,944,039.60/2,189.37
  6. Step 6: Final answer
    x = 1,801.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.