Home / 3,067.80-4,234.14-1,889.40

Finding the Fourth Proportional to 3,067.80, 4,234.14 and 1,889.40

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Solution

The fourth proportional to 3,067.80, 4,234.14 and 1,889.40 is: 2,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067.80 : 4,234.14 = 1,889.40 : x
  2. Step 2: Convert to fraction form
    3,067.80/4,234.14 = 1,889.40/x
  3. Step 3: Cross multiply
    3,067.80x = 4,234.14 × 1,889.40
  4. Step 4: Simplify right side
    3,067.80x = 7,999,984.12
  5. Step 5: Solve for x
    x = 7,999,984.12/3,067.80
  6. Step 6: Final answer
    x = 2,607.73

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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.