Home / 3,991.14-5,981.55-2,756.58

Finding the Fourth Proportional to 3,991.14, 5,981.55 and 2,756.58

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Solution

The fourth proportional to 3,991.14, 5,981.55 and 2,756.58 is: 4,131.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.14 : 5,981.55 = 2,756.58 : x
  2. Step 2: Convert to fraction form
    3,991.14/5,981.55 = 2,756.58/x
  3. Step 3: Cross multiply
    3,991.14x = 5,981.55 × 2,756.58
  4. Step 4: Simplify right side
    3,991.14x = 16,488,621.10
  5. Step 5: Solve for x
    x = 16,488,621.10/3,991.14
  6. Step 6: Final answer
    x = 4,131.31

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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.