Home / 2,321.29-3,203.31-1,326.61

Finding the Fourth Proportional to 2,321.29, 3,203.31 and 1,326.61

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Solution

The fourth proportional to 2,321.29, 3,203.31 and 1,326.61 is: 1,830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.29 : 3,203.31 = 1,326.61 : x
  2. Step 2: Convert to fraction form
    2,321.29/3,203.31 = 1,326.61/x
  3. Step 3: Cross multiply
    2,321.29x = 3,203.31 × 1,326.61
  4. Step 4: Simplify right side
    2,321.29x = 4,249,543.08
  5. Step 5: Solve for x
    x = 4,249,543.08/2,321.29
  6. Step 6: Final answer
    x = 1,830.68

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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.