Home / 3,178.12-4,767.49-1,329.81

Finding the Fourth Proportional to 3,178.12, 4,767.49 and 1,329.81

Calculator

Solution

The fourth proportional to 3,178.12, 4,767.49 and 1,329.81 is: 1,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.12 : 4,767.49 = 1,329.81 : x
  2. Step 2: Convert to fraction form
    3,178.12/4,767.49 = 1,329.81/x
  3. Step 3: Cross multiply
    3,178.12x = 4,767.49 × 1,329.81
  4. Step 4: Simplify right side
    3,178.12x = 6,339,855.88
  5. Step 5: Solve for x
    x = 6,339,855.88/3,178.12
  6. Step 6: Final answer
    x = 1,994.85

Related Problems

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.