Home / 1.90-2.84-1.88

Finding the Fourth Proportional to 1.90, 2.84 and 1.88

Calculator

Solution

The fourth proportional to 1.90, 2.84 and 1.88 is: 2.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.90 : 2.84 = 1.88 : x
  2. Step 2: Convert to fraction form
    1.90/2.84 = 1.88/x
  3. Step 3: Cross multiply
    1.90x = 2.84 × 1.88
  4. Step 4: Simplify right side
    1.90x = 5.34
  5. Step 5: Solve for x
    x = 5.34/1.90
  6. Step 6: Final answer
    x = 2.81

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.