Home / 976.50-1,620

Finding the Third Proportional to 976.50 and 1,620

Calculator

Solution

The third proportional to 976.50 and 1,620 is: 2,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.50 : 1,620 = 1,620 : x
  2. Step 2: Convert to fraction form
    976.50/1,620 = 1,620/x
  3. Step 3: Cross multiply
    976.50x = 1,620 × 1,620
  4. Step 4: Simplify right side
    976.50x = 2,624,400
  5. Step 5: Solve for x
    x = 2,624,400/976.50
  6. Step 6: Final answer
    x = 2,687.56

Related Problems

Find third proportional to 488.25 and 810
Half scale
Find third proportional to 1,953 and 3,240
Double scale
Find third proportional to 979 and 1,623
Similar ratio
Find third proportional to 1,464.75 and 2,430
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.