Home / 3,018.06-4,169.21-2,872.26

Finding the Fourth Proportional to 3,018.06, 4,169.21 and 2,872.26

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Solution

The fourth proportional to 3,018.06, 4,169.21 and 2,872.26 is: 3,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.06 : 4,169.21 = 2,872.26 : x
  2. Step 2: Convert to fraction form
    3,018.06/4,169.21 = 2,872.26/x
  3. Step 3: Cross multiply
    3,018.06x = 4,169.21 × 2,872.26
  4. Step 4: Simplify right side
    3,018.06x = 11,975,040.75
  5. Step 5: Solve for x
    x = 11,975,040.75/3,018.06
  6. Step 6: Final answer
    x = 3,967.79

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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.