Home / 1,360.01-2,040-435.55

Finding the Fourth Proportional to 1,360.01, 2,040 and 435.55

Calculator

Solution

The fourth proportional to 1,360.01, 2,040 and 435.55 is: 653.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.01 : 2,040 = 435.55 : x
  2. Step 2: Convert to fraction form
    1,360.01/2,040 = 435.55/x
  3. Step 3: Cross multiply
    1,360.01x = 2,040 × 435.55
  4. Step 4: Simplify right side
    1,360.01x = 888,522
  5. Step 5: Solve for x
    x = 888,522/1,360.01
  6. Step 6: Final answer
    x = 653.32

Related Problems

Find fourth proportional to 680.01, 1,020 and 217.78
Half scale
Find fourth proportional to 2,720.02, 4,080 and 871.10
Double scale
Find fourth proportional to 1,361.01, 2,041.50 and 436.55
Similar ratio
Find fourth proportional to 2,040.02, 3,060 and 653.33
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.