Home / 1,969.48-2,719.26-1,223.74

Finding the Fourth Proportional to 1,969.48, 2,719.26 and 1,223.74

Calculator

Solution

The fourth proportional to 1,969.48, 2,719.26 and 1,223.74 is: 1,689.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.48 : 2,719.26 = 1,223.74 : x
  2. Step 2: Convert to fraction form
    1,969.48/2,719.26 = 1,223.74/x
  3. Step 3: Cross multiply
    1,969.48x = 2,719.26 × 1,223.74
  4. Step 4: Simplify right side
    1,969.48x = 3,327,667.23
  5. Step 5: Solve for x
    x = 3,327,667.23/1,969.48
  6. Step 6: Final answer
    x = 1,689.62

Related Problems

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.