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Finding the Fourth Proportional to 4,045, 6,067.82 and 1,309

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Solution

The fourth proportional to 4,045, 6,067.82 and 1,309 is: 1,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,045 : 6,067.82 = 1,309 : x
  2. Step 2: Convert to fraction form
    4,045/6,067.82 = 1,309/x
  3. Step 3: Cross multiply
    4,045x = 6,067.82 × 1,309
  4. Step 4: Simplify right side
    4,045x = 7,942,776.38
  5. Step 5: Solve for x
    x = 7,942,776.38/4,045
  6. Step 6: Final answer
    x = 1,963.60

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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.