Home / 890-1,801

Finding the Third Proportional to 890 and 1,801

Calculator

Solution

The third proportional to 890 and 1,801 is: 3,644.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    890 : 1,801 = 1,801 : x
  2. Step 2: Convert to fraction form
    890/1,801 = 1,801/x
  3. Step 3: Cross multiply
    890x = 1,801 × 1,801
  4. Step 4: Simplify right side
    890x = 3,243,601
  5. Step 5: Solve for x
    x = 3,243,601/890
  6. Step 6: Final answer
    x = 3,644.50

Related Problems

Find third proportional to 445 and 900.50
Half scale
Find third proportional to 1,780 and 3,602
Double scale
Find third proportional to 892 and 1,805
Similar ratio
Find third proportional to 1,335 and 2,701.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.