Home / 2,229.16-3,076.86-1,297.84

Finding the Fourth Proportional to 2,229.16, 3,076.86 and 1,297.84

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Solution

The fourth proportional to 2,229.16, 3,076.86 and 1,297.84 is: 1,791.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.16 : 3,076.86 = 1,297.84 : x
  2. Step 2: Convert to fraction form
    2,229.16/3,076.86 = 1,297.84/x
  3. Step 3: Cross multiply
    2,229.16x = 3,076.86 × 1,297.84
  4. Step 4: Simplify right side
    2,229.16x = 3,993,271.98
  5. Step 5: Solve for x
    x = 3,993,271.98/2,229.16
  6. Step 6: Final answer
    x = 1,791.38

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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.