Home / 910-1,009

Finding the Third Proportional to 910 and 1,009

Calculator

Solution

The third proportional to 910 and 1,009 is: 1,118.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    910 : 1,009 = 1,009 : x
  2. Step 2: Convert to fraction form
    910/1,009 = 1,009/x
  3. Step 3: Cross multiply
    910x = 1,009 × 1,009
  4. Step 4: Simplify right side
    910x = 1,018,081
  5. Step 5: Solve for x
    x = 1,018,081/910
  6. Step 6: Final answer
    x = 1,118.77

Related Problems

Find third proportional to 455 and 504.50
Half scale
Find third proportional to 1,820 and 2,018
Double scale
Find third proportional to 912 and 1,011
Similar ratio
Find third proportional to 1,365 and 1,513.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.