Home / 1,326.41-1,979.91-1,230.03

Finding the Fourth Proportional to 1,326.41, 1,979.91 and 1,230.03

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Solution

The fourth proportional to 1,326.41, 1,979.91 and 1,230.03 is: 1,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.41 : 1,979.91 = 1,230.03 : x
  2. Step 2: Convert to fraction form
    1,326.41/1,979.91 = 1,230.03/x
  3. Step 3: Cross multiply
    1,326.41x = 1,979.91 × 1,230.03
  4. Step 4: Simplify right side
    1,326.41x = 2,435,348.70
  5. Step 5: Solve for x
    x = 2,435,348.70/1,326.41
  6. Step 6: Final answer
    x = 1,836.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.