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Finding the Fourth Proportional to 3,067.80, 4,574.10 and 3,019.20

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Solution

The fourth proportional to 3,067.80, 4,574.10 and 3,019.20 is: 4,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067.80 : 4,574.10 = 3,019.20 : x
  2. Step 2: Convert to fraction form
    3,067.80/4,574.10 = 3,019.20/x
  3. Step 3: Cross multiply
    3,067.80x = 4,574.10 × 3,019.20
  4. Step 4: Simplify right side
    3,067.80x = 13,810,122.72
  5. Step 5: Solve for x
    x = 13,810,122.72/3,067.80
  6. Step 6: Final answer
    x = 4,501.64

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1.5x scale

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.