Home / 4,991.09-6,889.97-3,556.38

Finding the Fourth Proportional to 4,991.09, 6,889.97 and 3,556.38

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Solution

The fourth proportional to 4,991.09, 6,889.97 and 3,556.38 is: 4,909.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.09 : 6,889.97 = 3,556.38 : x
  2. Step 2: Convert to fraction form
    4,991.09/6,889.97 = 3,556.38/x
  3. Step 3: Cross multiply
    4,991.09x = 6,889.97 × 3,556.38
  4. Step 4: Simplify right side
    4,991.09x = 24,503,351.51
  5. Step 5: Solve for x
    x = 24,503,351.51/4,991.09
  6. Step 6: Final answer
    x = 4,909.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.