Home / 1,104.56-1,524-690.64

Finding the Fourth Proportional to 1,104.56, 1,524 and 690.64

Calculator

Solution

The fourth proportional to 1,104.56, 1,524 and 690.64 is: 952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.56 : 1,524 = 690.64 : x
  2. Step 2: Convert to fraction form
    1,104.56/1,524 = 690.64/x
  3. Step 3: Cross multiply
    1,104.56x = 1,524 × 690.64
  4. Step 4: Simplify right side
    1,104.56x = 1,052,535.36
  5. Step 5: Solve for x
    x = 1,052,535.36/1,104.56
  6. Step 6: Final answer
    x = 952.90

Related Problems

Find fourth proportional to 552.28, 762 and 345.32
Half scale
Find fourth proportional to 2,209.12, 3,048 and 1,381.28
Double scale
Find fourth proportional to 1,105.56, 1,525.38 and 691.64
Similar ratio
Find fourth proportional to 1,656.84, 2,286 and 1,035.96
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.