Home / 913.50-1,221.75

Finding the Third Proportional to 913.50 and 1,221.75

Calculator

Solution

The third proportional to 913.50 and 1,221.75 is: 1,634.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    913.50 : 1,221.75 = 1,221.75 : x
  2. Step 2: Convert to fraction form
    913.50/1,221.75 = 1,221.75/x
  3. Step 3: Cross multiply
    913.50x = 1,221.75 × 1,221.75
  4. Step 4: Simplify right side
    913.50x = 1,492,673.06
  5. Step 5: Solve for x
    x = 1,492,673.06/913.50
  6. Step 6: Final answer
    x = 1,634.02

Related Problems

Find third proportional to 456.75 and 610.88
Half scale
Find third proportional to 1,827 and 2,443.50
Double scale
Find third proportional to 916 and 1,224
Similar ratio
Find third proportional to 1,370.25 and 1,832.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.