Home / 3,206-4,809-1,154

Finding the Fourth Proportional to 3,206, 4,809 and 1,154

Calculator

Solution

The fourth proportional to 3,206, 4,809 and 1,154 is: 1,731

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206 : 4,809 = 1,154 : x
  2. Step 2: Convert to fraction form
    3,206/4,809 = 1,154/x
  3. Step 3: Cross multiply
    3,206x = 4,809 × 1,154
  4. Step 4: Simplify right side
    3,206x = 5,549,586
  5. Step 5: Solve for x
    x = 5,549,586/3,206
  6. Step 6: Final answer
    x = 1,731

Related Problems

Find fourth proportional to 1,603, 2,404.50 and 577
Half scale
Find fourth proportional to 6,412, 9,618 and 2,308
Double scale
Find fourth proportional to 3,207, 4,810.50 and 1,155
Similar ratio
Find fourth proportional to 4,809, 7,213.50 and 1,731
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.