Home / 3,021.44-4,172.75-2,079.66

Finding the Fourth Proportional to 3,021.44, 4,172.75 and 2,079.66

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Solution

The fourth proportional to 3,021.44, 4,172.75 and 2,079.66 is: 2,872.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.44 : 4,172.75 = 2,079.66 : x
  2. Step 2: Convert to fraction form
    3,021.44/4,172.75 = 2,079.66/x
  3. Step 3: Cross multiply
    3,021.44x = 4,172.75 × 2,079.66
  4. Step 4: Simplify right side
    3,021.44x = 8,677,914.31
  5. Step 5: Solve for x
    x = 8,677,914.31/3,021.44
  6. Step 6: Final answer
    x = 2,872.12

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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.