Home / 2,151.03-3,229.70-1,326.90

Finding the Fourth Proportional to 2,151.03, 3,229.70 and 1,326.90

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Solution

The fourth proportional to 2,151.03, 3,229.70 and 1,326.90 is: 1,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.03 : 3,229.70 = 1,326.90 : x
  2. Step 2: Convert to fraction form
    2,151.03/3,229.70 = 1,326.90/x
  3. Step 3: Cross multiply
    2,151.03x = 3,229.70 × 1,326.90
  4. Step 4: Simplify right side
    2,151.03x = 4,285,488.93
  5. Step 5: Solve for x
    x = 4,285,488.93/2,151.03
  6. Step 6: Final answer
    x = 1,992.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.