Home / 871.31-1,970.16

Finding the Third Proportional to 871.31 and 1,970.16

Calculator

Solution

The third proportional to 871.31 and 1,970.16 is: 4,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    871.31 : 1,970.16 = 1,970.16 : x
  2. Step 2: Convert to fraction form
    871.31/1,970.16 = 1,970.16/x
  3. Step 3: Cross multiply
    871.31x = 1,970.16 × 1,970.16
  4. Step 4: Simplify right side
    871.31x = 3,881,515.65
  5. Step 5: Solve for x
    x = 3,881,515.65/871.31
  6. Step 6: Final answer
    x = 4,454.79

Related Problems

Find third proportional to 435.66 and 985.08
Half scale
Find third proportional to 1,742.63 and 3,940.31
Double scale
Find third proportional to 873 and 1,975
Similar ratio
Find third proportional to 1,306.97 and 2,955.23
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.