Home / 2,321.45-3,203.81-1,326.71

Finding the Fourth Proportional to 2,321.45, 3,203.81 and 1,326.71

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Solution

The fourth proportional to 2,321.45, 3,203.81 and 1,326.71 is: 1,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.45 : 3,203.81 = 1,326.71 : x
  2. Step 2: Convert to fraction form
    2,321.45/3,203.81 = 1,326.71/x
  3. Step 3: Cross multiply
    2,321.45x = 3,203.81 × 1,326.71
  4. Step 4: Simplify right side
    2,321.45x = 4,250,504.11
  5. Step 5: Solve for x
    x = 4,250,504.11/2,321.45
  6. Step 6: Final answer
    x = 1,830.97

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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.