Home / 911.25-981

Finding the Third Proportional to 911.25 and 981

Calculator

Solution

The third proportional to 911.25 and 981 is: 1,056.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    911.25 : 981 = 981 : x
  2. Step 2: Convert to fraction form
    911.25/981 = 981/x
  3. Step 3: Cross multiply
    911.25x = 981 × 981
  4. Step 4: Simplify right side
    911.25x = 962,361
  5. Step 5: Solve for x
    x = 962,361/911.25
  6. Step 6: Final answer
    x = 1,056.09

Related Problems

Find third proportional to 455.63 and 490.50
Half scale
Find third proportional to 1,822.50 and 1,962
Double scale
Find third proportional to 913 and 983
Similar ratio
Find third proportional to 1,366.88 and 1,471.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.