Home / 1,608.36-2,219.37-936.03

Finding the Fourth Proportional to 1,608.36, 2,219.37 and 936.03

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Solution

The fourth proportional to 1,608.36, 2,219.37 and 936.03 is: 1,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.36 : 2,219.37 = 936.03 : x
  2. Step 2: Convert to fraction form
    1,608.36/2,219.37 = 936.03/x
  3. Step 3: Cross multiply
    1,608.36x = 2,219.37 × 936.03
  4. Step 4: Simplify right side
    1,608.36x = 2,077,396.90
  5. Step 5: Solve for x
    x = 2,077,396.90/1,608.36
  6. Step 6: Final answer
    x = 1,291.62

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1.5x scale

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.