Home / 626-921

Finding the Third Proportional to 626 and 921

Calculator

Solution

The third proportional to 626 and 921 is: 1,355.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    626 : 921 = 921 : x
  2. Step 2: Convert to fraction form
    626/921 = 921/x
  3. Step 3: Cross multiply
    626x = 921 × 921
  4. Step 4: Simplify right side
    626x = 848,241
  5. Step 5: Solve for x
    x = 848,241/626
  6. Step 6: Final answer
    x = 1,355.02

Related Problems

Find third proportional to 313 and 460.50
Half scale
Find third proportional to 1,252 and 1,842
Double scale
Find third proportional to 628 and 924
Similar ratio
Find third proportional to 939 and 1,381.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.