Home / 2,321.55-3,203.67-1,326.75

Finding the Fourth Proportional to 2,321.55, 3,203.67 and 1,326.75

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Solution

The fourth proportional to 2,321.55, 3,203.67 and 1,326.75 is: 1,830.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.55 : 3,203.67 = 1,326.75 : x
  2. Step 2: Convert to fraction form
    2,321.55/3,203.67 = 1,326.75/x
  3. Step 3: Cross multiply
    2,321.55x = 3,203.67 × 1,326.75
  4. Step 4: Simplify right side
    2,321.55x = 4,250,469.17
  5. Step 5: Solve for x
    x = 4,250,469.17/2,321.55
  6. Step 6: Final answer
    x = 1,830.88

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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.