Home / 1,782-2,673-756

Finding the Fourth Proportional to 1,782, 2,673 and 756

Calculator

Solution

The fourth proportional to 1,782, 2,673 and 756 is: 1,134

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782 : 2,673 = 756 : x
  2. Step 2: Convert to fraction form
    1,782/2,673 = 756/x
  3. Step 3: Cross multiply
    1,782x = 2,673 × 756
  4. Step 4: Simplify right side
    1,782x = 2,020,788
  5. Step 5: Solve for x
    x = 2,020,788/1,782
  6. Step 6: Final answer
    x = 1,134

Related Problems

Find fourth proportional to 891, 1,336.50 and 378
Half scale
Find fourth proportional to 3,564, 5,346 and 1,512
Double scale
Find fourth proportional to 1,783, 2,674.50 and 757
Similar ratio
Find fourth proportional to 2,673, 4,009.50 and 1,134
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.