Home / 913-1,408

Finding the Third Proportional to 913 and 1,408

Calculator

Solution

The third proportional to 913 and 1,408 is: 2,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    913 : 1,408 = 1,408 : x
  2. Step 2: Convert to fraction form
    913/1,408 = 1,408/x
  3. Step 3: Cross multiply
    913x = 1,408 × 1,408
  4. Step 4: Simplify right side
    913x = 1,982,464
  5. Step 5: Solve for x
    x = 1,982,464/913
  6. Step 6: Final answer
    x = 2,171.37

Related Problems

Find third proportional to 456.50 and 704
Half scale
Find third proportional to 1,826 and 2,816
Double scale
Find third proportional to 915 and 1,411
Similar ratio
Find third proportional to 1,369.50 and 2,112
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.