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Finding the Fourth Proportional to 3,067.68, 4,603.50 and 1,425

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Solution

The fourth proportional to 3,067.68, 4,603.50 and 1,425 is: 2,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067.68 : 4,603.50 = 1,425 : x
  2. Step 2: Convert to fraction form
    3,067.68/4,603.50 = 1,425/x
  3. Step 3: Cross multiply
    3,067.68x = 4,603.50 × 1,425
  4. Step 4: Simplify right side
    3,067.68x = 6,559,987.50
  5. Step 5: Solve for x
    x = 6,559,987.50/3,067.68
  6. Step 6: Final answer
    x = 2,138.42

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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.