Home / 1,994.32-2,752.11-1,155

Finding the Fourth Proportional to 1,994.32, 2,752.11 and 1,155

Calculator

Solution

The fourth proportional to 1,994.32, 2,752.11 and 1,155 is: 1,593.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.32 : 2,752.11 = 1,155 : x
  2. Step 2: Convert to fraction form
    1,994.32/2,752.11 = 1,155/x
  3. Step 3: Cross multiply
    1,994.32x = 2,752.11 × 1,155
  4. Step 4: Simplify right side
    1,994.32x = 3,178,687.05
  5. Step 5: Solve for x
    x = 3,178,687.05/1,994.32
  6. Step 6: Final answer
    x = 1,593.87

Related Problems

Find fourth proportional to 997.16, 1,376.06 and 577.50
Half scale
Find fourth proportional to 3,988.64, 5,504.22 and 2,310
Double scale
Find fourth proportional to 1,995.32, 2,753.49 and 1,156
Similar ratio
Find fourth proportional to 2,991.48, 4,128.17 and 1,732.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.