Home / 1,683-2,781

Finding the Third Proportional to 1,683 and 2,781

Calculator

Solution

The third proportional to 1,683 and 2,781 is: 4,595.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683 : 2,781 = 2,781 : x
  2. Step 2: Convert to fraction form
    1,683/2,781 = 2,781/x
  3. Step 3: Cross multiply
    1,683x = 2,781 × 2,781
  4. Step 4: Simplify right side
    1,683x = 7,733,961
  5. Step 5: Solve for x
    x = 7,733,961/1,683
  6. Step 6: Final answer
    x = 4,595.34

Related Problems

Find third proportional to 841.50 and 1,390.50
Half scale
Find third proportional to 3,366 and 5,562
Double scale
Find third proportional to 1,685 and 2,784
Similar ratio
Find third proportional to 2,524.50 and 4,171.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.