Home / 2,190.89-3,282.08-1,945.46

Finding the Fourth Proportional to 2,190.89, 3,282.08 and 1,945.46

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Solution

The fourth proportional to 2,190.89, 3,282.08 and 1,945.46 is: 2,914.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.89 : 3,282.08 = 1,945.46 : x
  2. Step 2: Convert to fraction form
    2,190.89/3,282.08 = 1,945.46/x
  3. Step 3: Cross multiply
    2,190.89x = 3,282.08 × 1,945.46
  4. Step 4: Simplify right side
    2,190.89x = 6,385,168.43
  5. Step 5: Solve for x
    x = 6,385,168.43/2,190.89
  6. Step 6: Final answer
    x = 2,914.41

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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.