Home / 683.60-958-683.60

Finding the Fourth Proportional to 683.60, 958 and 683.60

Calculator

Solution

The fourth proportional to 683.60, 958 and 683.60 is: 958

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.60 : 958 = 683.60 : x
  2. Step 2: Convert to fraction form
    683.60/958 = 683.60/x
  3. Step 3: Cross multiply
    683.60x = 958 × 683.60
  4. Step 4: Simplify right side
    683.60x = 654,888.80
  5. Step 5: Solve for x
    x = 654,888.80/683.60
  6. Step 6: Final answer
    x = 958

Related Problems

Find fourth proportional to 341.80, 479 and 341.80
Half scale
Find fourth proportional to 1,367.20, 1,916 and 1,367.20
Double scale
Find fourth proportional to 684.60, 959.40 and 684.60
Similar ratio
Find fourth proportional to 1,025.40, 1,437 and 1,025.40
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.