Home / 3,923.88-5,415.06-2,222.25

Finding the Fourth Proportional to 3,923.88, 5,415.06 and 2,222.25

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Solution

The fourth proportional to 3,923.88, 5,415.06 and 2,222.25 is: 3,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.88 : 5,415.06 = 2,222.25 : x
  2. Step 2: Convert to fraction form
    3,923.88/5,415.06 = 2,222.25/x
  3. Step 3: Cross multiply
    3,923.88x = 5,415.06 × 2,222.25
  4. Step 4: Simplify right side
    3,923.88x = 12,033,617.09
  5. Step 5: Solve for x
    x = 12,033,617.09/3,923.88
  6. Step 6: Final answer
    x = 3,066.76

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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.