Home / 1,637-1,909

Finding the Third Proportional to 1,637 and 1,909

Calculator

Solution

The third proportional to 1,637 and 1,909 is: 2,226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637 : 1,909 = 1,909 : x
  2. Step 2: Convert to fraction form
    1,637/1,909 = 1,909/x
  3. Step 3: Cross multiply
    1,637x = 1,909 × 1,909
  4. Step 4: Simplify right side
    1,637x = 3,644,281
  5. Step 5: Solve for x
    x = 3,644,281/1,637
  6. Step 6: Final answer
    x = 2,226.19

Related Problems

Find third proportional to 818.50 and 954.50
Half scale
Find third proportional to 3,274 and 3,818
Double scale
Find third proportional to 1,639 and 1,911
Similar ratio
Find third proportional to 2,455.50 and 2,863.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.