Home / 3,083.21-4,253.54-2,021.23

Finding the Fourth Proportional to 3,083.21, 4,253.54 and 2,021.23

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Solution

The fourth proportional to 3,083.21, 4,253.54 and 2,021.23 is: 2,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.21 : 4,253.54 = 2,021.23 : x
  2. Step 2: Convert to fraction form
    3,083.21/4,253.54 = 2,021.23/x
  3. Step 3: Cross multiply
    3,083.21x = 4,253.54 × 2,021.23
  4. Step 4: Simplify right side
    3,083.21x = 8,597,382.65
  5. Step 5: Solve for x
    x = 8,597,382.65/3,083.21
  6. Step 6: Final answer
    x = 2,788.45

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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.