Home / 3,189.70-4,782.59-1,239.63

Finding the Fourth Proportional to 3,189.70, 4,782.59 and 1,239.63

Calculator

Solution

The fourth proportional to 3,189.70, 4,782.59 and 1,239.63 is: 1,858.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.70 : 4,782.59 = 1,239.63 : x
  2. Step 2: Convert to fraction form
    3,189.70/4,782.59 = 1,239.63/x
  3. Step 3: Cross multiply
    3,189.70x = 4,782.59 × 1,239.63
  4. Step 4: Simplify right side
    3,189.70x = 5,928,642.04
  5. Step 5: Solve for x
    x = 5,928,642.04/3,189.70
  6. Step 6: Final answer
    x = 1,858.68

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.