Home / 1,395.16-2,091.93-529

Finding the Fourth Proportional to 1,395.16, 2,091.93 and 529

Calculator

Solution

The fourth proportional to 1,395.16, 2,091.93 and 529 is: 793.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.16 : 2,091.93 = 529 : x
  2. Step 2: Convert to fraction form
    1,395.16/2,091.93 = 529/x
  3. Step 3: Cross multiply
    1,395.16x = 2,091.93 × 529
  4. Step 4: Simplify right side
    1,395.16x = 1,106,630.97
  5. Step 5: Solve for x
    x = 1,106,630.97/1,395.16
  6. Step 6: Final answer
    x = 793.19

Related Problems

Find fourth proportional to 697.58, 1,045.97 and 264.50
Half scale
Find fourth proportional to 2,790.32, 4,183.86 and 1,058
Double scale
Find fourth proportional to 1,396.16, 2,093.43 and 530
Similar ratio
Find fourth proportional to 2,092.74, 3,137.90 and 793.50
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.