Home / 3,067.51-4,228.91-2,071.21

Finding the Fourth Proportional to 3,067.51, 4,228.91 and 2,071.21

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Solution

The fourth proportional to 3,067.51, 4,228.91 and 2,071.21 is: 2,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067.51 : 4,228.91 = 2,071.21 : x
  2. Step 2: Convert to fraction form
    3,067.51/4,228.91 = 2,071.21/x
  3. Step 3: Cross multiply
    3,067.51x = 4,228.91 × 2,071.21
  4. Step 4: Simplify right side
    3,067.51x = 8,758,947.52
  5. Step 5: Solve for x
    x = 8,758,947.52/3,067.51
  6. Step 6: Final answer
    x = 2,855.40

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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.