Home / 3,782.12-5,669.16-1,831.64

Finding the Fourth Proportional to 3,782.12, 5,669.16 and 1,831.64

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Solution

The fourth proportional to 3,782.12, 5,669.16 and 1,831.64 is: 2,745.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.12 : 5,669.16 = 1,831.64 : x
  2. Step 2: Convert to fraction form
    3,782.12/5,669.16 = 1,831.64/x
  3. Step 3: Cross multiply
    3,782.12x = 5,669.16 × 1,831.64
  4. Step 4: Simplify right side
    3,782.12x = 10,383,860.22
  5. Step 5: Solve for x
    x = 10,383,860.22/3,782.12
  6. Step 6: Final answer
    x = 2,745.51

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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.