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Finding the Fourth Proportional to 2,711.35, 4,067.36 and 955.94

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Solution

The fourth proportional to 2,711.35, 4,067.36 and 955.94 is: 1,434.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.35 : 4,067.36 = 955.94 : x
  2. Step 2: Convert to fraction form
    2,711.35/4,067.36 = 955.94/x
  3. Step 3: Cross multiply
    2,711.35x = 4,067.36 × 955.94
  4. Step 4: Simplify right side
    2,711.35x = 3,888,152.12
  5. Step 5: Solve for x
    x = 3,888,152.12/2,711.35
  6. Step 6: Final answer
    x = 1,434.03

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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.