Home / 2,321.15-3,203.21-1,326.47

Finding the Fourth Proportional to 2,321.15, 3,203.21 and 1,326.47

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Solution

The fourth proportional to 2,321.15, 3,203.21 and 1,326.47 is: 1,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.15 : 3,203.21 = 1,326.47 : x
  2. Step 2: Convert to fraction form
    2,321.15/3,203.21 = 1,326.47/x
  3. Step 3: Cross multiply
    2,321.15x = 3,203.21 × 1,326.47
  4. Step 4: Simplify right side
    2,321.15x = 4,248,961.97
  5. Step 5: Solve for x
    x = 4,248,961.97/2,321.15
  6. Step 6: Final answer
    x = 1,830.54

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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.