Home / 918.25-2,170.75

Finding the Third Proportional to 918.25 and 2,170.75

Calculator

Solution

The third proportional to 918.25 and 2,170.75 is: 5,131.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    918.25 : 2,170.75 = 2,170.75 : x
  2. Step 2: Convert to fraction form
    918.25/2,170.75 = 2,170.75/x
  3. Step 3: Cross multiply
    918.25x = 2,170.75 × 2,170.75
  4. Step 4: Simplify right side
    918.25x = 4,712,155.56
  5. Step 5: Solve for x
    x = 4,712,155.56/918.25
  6. Step 6: Final answer
    x = 5,131.67

Related Problems

Find third proportional to 459.13 and 1,085.38
Half scale
Find third proportional to 1,836.50 and 4,341.50
Double scale
Find third proportional to 920 and 2,175
Similar ratio
Find third proportional to 1,377.38 and 3,256.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.