Home / 4,911.27-7,367.82-1,991.64

Finding the Fourth Proportional to 4,911.27, 7,367.82 and 1,991.64

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Solution

The fourth proportional to 4,911.27, 7,367.82 and 1,991.64 is: 2,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.27 : 7,367.82 = 1,991.64 : x
  2. Step 2: Convert to fraction form
    4,911.27/7,367.82 = 1,991.64/x
  3. Step 3: Cross multiply
    4,911.27x = 7,367.82 × 1,991.64
  4. Step 4: Simplify right side
    4,911.27x = 14,674,045.02
  5. Step 5: Solve for x
    x = 14,674,045.02/4,911.27
  6. Step 6: Final answer
    x = 2,987.83

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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.