Home / 2,321.22-3,203.12-1,376.97

Finding the Fourth Proportional to 2,321.22, 3,203.12 and 1,376.97

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Solution

The fourth proportional to 2,321.22, 3,203.12 and 1,376.97 is: 1,900.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.22 : 3,203.12 = 1,376.97 : x
  2. Step 2: Convert to fraction form
    2,321.22/3,203.12 = 1,376.97/x
  3. Step 3: Cross multiply
    2,321.22x = 3,203.12 × 1,376.97
  4. Step 4: Simplify right side
    2,321.22x = 4,410,593.26
  5. Step 5: Solve for x
    x = 4,410,593.26/2,321.22
  6. Step 6: Final answer
    x = 1,900.12

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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.