Home / 1,819-4,007

Finding the Third Proportional to 1,819 and 4,007

Calculator

Solution

The third proportional to 1,819 and 4,007 is: 8,826.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819 : 4,007 = 4,007 : x
  2. Step 2: Convert to fraction form
    1,819/4,007 = 4,007/x
  3. Step 3: Cross multiply
    1,819x = 4,007 × 4,007
  4. Step 4: Simplify right side
    1,819x = 16,056,049
  5. Step 5: Solve for x
    x = 16,056,049/1,819
  6. Step 6: Final answer
    x = 8,826.85

Related Problems

Find third proportional to 909.50 and 2,003.50
Half scale
Find third proportional to 3,638 and 8,014
Double scale
Find third proportional to 1,821 and 4,011
Similar ratio
Find third proportional to 2,728.50 and 6,010.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.