Home / 1,681-3,455

Finding the Third Proportional to 1,681 and 3,455

Calculator

Solution

The third proportional to 1,681 and 3,455 is: 7,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681 : 3,455 = 3,455 : x
  2. Step 2: Convert to fraction form
    1,681/3,455 = 3,455/x
  3. Step 3: Cross multiply
    1,681x = 3,455 × 3,455
  4. Step 4: Simplify right side
    1,681x = 11,937,025
  5. Step 5: Solve for x
    x = 11,937,025/1,681
  6. Step 6: Final answer
    x = 7,101.15

Related Problems

Find third proportional to 840.50 and 1,727.50
Half scale
Find third proportional to 3,362 and 6,910
Double scale
Find third proportional to 1,683 and 3,459
Similar ratio
Find third proportional to 2,521.50 and 5,182.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.