Home / 2,130.81-3,196.29-744.29

Finding the Fourth Proportional to 2,130.81, 3,196.29 and 744.29

Calculator

Solution

The fourth proportional to 2,130.81, 3,196.29 and 744.29 is: 1,116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.81 : 3,196.29 = 744.29 : x
  2. Step 2: Convert to fraction form
    2,130.81/3,196.29 = 744.29/x
  3. Step 3: Cross multiply
    2,130.81x = 3,196.29 × 744.29
  4. Step 4: Simplify right side
    2,130.81x = 2,378,965.48
  5. Step 5: Solve for x
    x = 2,378,965.48/2,130.81
  6. Step 6: Final answer
    x = 1,116.46

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.