Home / 3,762-5,643-1,330

Finding the Fourth Proportional to 3,762, 5,643 and 1,330

Calculator

Solution

The fourth proportional to 3,762, 5,643 and 1,330 is: 1,995

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762 : 5,643 = 1,330 : x
  2. Step 2: Convert to fraction form
    3,762/5,643 = 1,330/x
  3. Step 3: Cross multiply
    3,762x = 5,643 × 1,330
  4. Step 4: Simplify right side
    3,762x = 7,505,190
  5. Step 5: Solve for x
    x = 7,505,190/3,762
  6. Step 6: Final answer
    x = 1,995

Related Problems

Find fourth proportional to 1,881, 2,821.50 and 665
Half scale
Find fourth proportional to 7,524, 11,286 and 2,660
Double scale
Find fourth proportional to 3,763, 5,644.50 and 1,331
Similar ratio
Find fourth proportional to 5,643, 8,464.50 and 1,995
1.5x scale

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.