Home / 2,190.38-3,288.45-2,009.26

Finding the Fourth Proportional to 2,190.38, 3,288.45 and 2,009.26

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Solution

The fourth proportional to 2,190.38, 3,288.45 and 2,009.26 is: 3,016.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.38 : 3,288.45 = 2,009.26 : x
  2. Step 2: Convert to fraction form
    2,190.38/3,288.45 = 2,009.26/x
  3. Step 3: Cross multiply
    2,190.38x = 3,288.45 × 2,009.26
  4. Step 4: Simplify right side
    2,190.38x = 6,607,351.05
  5. Step 5: Solve for x
    x = 6,607,351.05/2,190.38
  6. Step 6: Final answer
    x = 3,016.53

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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.