Home / 2.31-3.46-1.98

Finding the Fourth Proportional to 2.31, 3.46 and 1.98

Calculator

Solution

The fourth proportional to 2.31, 3.46 and 1.98 is: 2.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.31 : 3.46 = 1.98 : x
  2. Step 2: Convert to fraction form
    2.31/3.46 = 1.98/x
  3. Step 3: Cross multiply
    2.31x = 3.46 × 1.98
  4. Step 4: Simplify right side
    2.31x = 6.85
  5. Step 5: Solve for x
    x = 6.85/2.31
  6. Step 6: Final answer
    x = 2.97

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.