Home / 3,833.87-5,290.79-2,321.19

Finding the Fourth Proportional to 3,833.87, 5,290.79 and 2,321.19

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Solution

The fourth proportional to 3,833.87, 5,290.79 and 2,321.19 is: 3,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.87 : 5,290.79 = 2,321.19 : x
  2. Step 2: Convert to fraction form
    3,833.87/5,290.79 = 2,321.19/x
  3. Step 3: Cross multiply
    3,833.87x = 5,290.79 × 2,321.19
  4. Step 4: Simplify right side
    3,833.87x = 12,280,917.23
  5. Step 5: Solve for x
    x = 12,280,917.23/3,833.87
  6. Step 6: Final answer
    x = 3,203.27

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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.