Home / 2,067.87-2,853.63-1,228.98

Finding the Fourth Proportional to 2,067.87, 2,853.63 and 1,228.98

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Solution

The fourth proportional to 2,067.87, 2,853.63 and 1,228.98 is: 1,695.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,067.87 : 2,853.63 = 1,228.98 : x
  2. Step 2: Convert to fraction form
    2,067.87/2,853.63 = 1,228.98/x
  3. Step 3: Cross multiply
    2,067.87x = 2,853.63 × 1,228.98
  4. Step 4: Simplify right side
    2,067.87x = 3,507,054.20
  5. Step 5: Solve for x
    x = 3,507,054.20/2,067.87
  6. Step 6: Final answer
    x = 1,695.97

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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.