Home / 969.75-2,121.75

Finding the Third Proportional to 969.75 and 2,121.75

Calculator

Solution

The third proportional to 969.75 and 2,121.75 is: 4,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.75 : 2,121.75 = 2,121.75 : x
  2. Step 2: Convert to fraction form
    969.75/2,121.75 = 2,121.75/x
  3. Step 3: Cross multiply
    969.75x = 2,121.75 × 2,121.75
  4. Step 4: Simplify right side
    969.75x = 4,501,823.06
  5. Step 5: Solve for x
    x = 4,501,823.06/969.75
  6. Step 6: Final answer
    x = 4,642.25

Related Problems

Find third proportional to 484.88 and 1,060.88
Half scale
Find third proportional to 1,939.50 and 4,243.50
Double scale
Find third proportional to 972 and 2,126
Similar ratio
Find third proportional to 1,454.63 and 3,182.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.