Home / 901.13-1,989.56

Finding the Third Proportional to 901.13 and 1,989.56

Calculator

Solution

The third proportional to 901.13 and 1,989.56 is: 4,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.13 : 1,989.56 = 1,989.56 : x
  2. Step 2: Convert to fraction form
    901.13/1,989.56 = 1,989.56/x
  3. Step 3: Cross multiply
    901.13x = 1,989.56 × 1,989.56
  4. Step 4: Simplify right side
    901.13x = 3,958,358.94
  5. Step 5: Solve for x
    x = 3,958,358.94/901.13
  6. Step 6: Final answer
    x = 4,392.69

Related Problems

Find third proportional to 450.56 and 994.78
Half scale
Find third proportional to 1,802.25 and 3,979.13
Double scale
Find third proportional to 903 and 1,994
Similar ratio
Find third proportional to 1,351.69 and 2,984.34
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.