Home / 1,240.22-1,711.34-742.76

Finding the Fourth Proportional to 1,240.22, 1,711.34 and 742.76

Calculator

Solution

The fourth proportional to 1,240.22, 1,711.34 and 742.76 is: 1,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240.22 : 1,711.34 = 742.76 : x
  2. Step 2: Convert to fraction form
    1,240.22/1,711.34 = 742.76/x
  3. Step 3: Cross multiply
    1,240.22x = 1,711.34 × 742.76
  4. Step 4: Simplify right side
    1,240.22x = 1,271,114.90
  5. Step 5: Solve for x
    x = 1,271,114.90/1,240.22
  6. Step 6: Final answer
    x = 1,024.91

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.