Home / 774-1,668.50

Finding the Third Proportional to 774 and 1,668.50

Calculator

Solution

The third proportional to 774 and 1,668.50 is: 3,596.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    774 : 1,668.50 = 1,668.50 : x
  2. Step 2: Convert to fraction form
    774/1,668.50 = 1,668.50/x
  3. Step 3: Cross multiply
    774x = 1,668.50 × 1,668.50
  4. Step 4: Simplify right side
    774x = 2,783,892.25
  5. Step 5: Solve for x
    x = 2,783,892.25/774
  6. Step 6: Final answer
    x = 3,596.76

Related Problems

Find third proportional to 387 and 834.25
Half scale
Find third proportional to 1,548 and 3,337
Double scale
Find third proportional to 776 and 1,673
Similar ratio
Find third proportional to 1,161 and 2,502.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.