Home / 2,190.49-3,287.61-1,204.19

Finding the Fourth Proportional to 2,190.49, 3,287.61 and 1,204.19

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Solution

The fourth proportional to 2,190.49, 3,287.61 and 1,204.19 is: 1,807.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.49 : 3,287.61 = 1,204.19 : x
  2. Step 2: Convert to fraction form
    2,190.49/3,287.61 = 1,204.19/x
  3. Step 3: Cross multiply
    2,190.49x = 3,287.61 × 1,204.19
  4. Step 4: Simplify right side
    2,190.49x = 3,958,907.09
  5. Step 5: Solve for x
    x = 3,958,907.09/2,190.49
  6. Step 6: Final answer
    x = 1,807.32

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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.