Home / 727.79-1,091.07-402.17

Finding the Fourth Proportional to 727.79, 1,091.07 and 402.17

Calculator

Solution

The fourth proportional to 727.79, 1,091.07 and 402.17 is: 602.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    727.79 : 1,091.07 = 402.17 : x
  2. Step 2: Convert to fraction form
    727.79/1,091.07 = 402.17/x
  3. Step 3: Cross multiply
    727.79x = 1,091.07 × 402.17
  4. Step 4: Simplify right side
    727.79x = 438,790.17
  5. Step 5: Solve for x
    x = 438,790.17/727.79
  6. Step 6: Final answer
    x = 602.91

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.