Home / 3,669.37-5,063.69-1,990.75

Finding the Fourth Proportional to 3,669.37, 5,063.69 and 1,990.75

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Solution

The fourth proportional to 3,669.37, 5,063.69 and 1,990.75 is: 2,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.37 : 5,063.69 = 1,990.75 : x
  2. Step 2: Convert to fraction form
    3,669.37/5,063.69 = 1,990.75/x
  3. Step 3: Cross multiply
    3,669.37x = 5,063.69 × 1,990.75
  4. Step 4: Simplify right side
    3,669.37x = 10,080,540.87
  5. Step 5: Solve for x
    x = 10,080,540.87/3,669.37
  6. Step 6: Final answer
    x = 2,747.21

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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.