Home / 1,958-3,115

Finding the Third Proportional to 1,958 and 3,115

Calculator

Solution

The third proportional to 1,958 and 3,115 is: 4,955.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958 : 3,115 = 3,115 : x
  2. Step 2: Convert to fraction form
    1,958/3,115 = 3,115/x
  3. Step 3: Cross multiply
    1,958x = 3,115 × 3,115
  4. Step 4: Simplify right side
    1,958x = 9,703,225
  5. Step 5: Solve for x
    x = 9,703,225/1,958
  6. Step 6: Final answer
    x = 4,955.68

Related Problems

Find third proportional to 979 and 1,557.50
Half scale
Find third proportional to 3,916 and 6,230
Double scale
Find third proportional to 1,960 and 3,118
Similar ratio
Find third proportional to 2,937 and 4,672.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.