Home / 1,986-4,280

Finding the Third Proportional to 1,986 and 4,280

Calculator

Solution

The third proportional to 1,986 and 4,280 is: 9,223.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986 : 4,280 = 4,280 : x
  2. Step 2: Convert to fraction form
    1,986/4,280 = 4,280/x
  3. Step 3: Cross multiply
    1,986x = 4,280 × 4,280
  4. Step 4: Simplify right side
    1,986x = 18,318,400
  5. Step 5: Solve for x
    x = 18,318,400/1,986
  6. Step 6: Final answer
    x = 9,223.77

Related Problems

Find third proportional to 993 and 2,140
Half scale
Find third proportional to 3,972 and 8,560
Double scale
Find third proportional to 1,988 and 4,284
Similar ratio
Find third proportional to 2,979 and 6,420
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.