Home / 788-1,580

Finding the Third Proportional to 788 and 1,580

Calculator

Solution

The third proportional to 788 and 1,580 is: 3,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    788 : 1,580 = 1,580 : x
  2. Step 2: Convert to fraction form
    788/1,580 = 1,580/x
  3. Step 3: Cross multiply
    788x = 1,580 × 1,580
  4. Step 4: Simplify right side
    788x = 2,496,400
  5. Step 5: Solve for x
    x = 2,496,400/788
  6. Step 6: Final answer
    x = 3,168.02

Related Problems

Find third proportional to 394 and 790
Half scale
Find third proportional to 1,576 and 3,160
Double scale
Find third proportional to 790 and 1,584
Similar ratio
Find third proportional to 1,182 and 2,370
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.