Home / 3,136-3,520

Finding the Third Proportional to 3,136 and 3,520

Calculator

Solution

The third proportional to 3,136 and 3,520 is: 3,951.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136 : 3,520 = 3,520 : x
  2. Step 2: Convert to fraction form
    3,136/3,520 = 3,520/x
  3. Step 3: Cross multiply
    3,136x = 3,520 × 3,520
  4. Step 4: Simplify right side
    3,136x = 12,390,400
  5. Step 5: Solve for x
    x = 12,390,400/3,136
  6. Step 6: Final answer
    x = 3,951.02

Related Problems

Find third proportional to 1,568 and 1,760
Half scale
Find third proportional to 6,272 and 7,040
Double scale
Find third proportional to 3,138 and 3,522
Similar ratio
Find third proportional to 4,704 and 5,280
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.