Home / 1,068-1,602-298.50

Finding the Fourth Proportional to 1,068, 1,602 and 298.50

Calculator

Solution

The fourth proportional to 1,068, 1,602 and 298.50 is: 447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068 : 1,602 = 298.50 : x
  2. Step 2: Convert to fraction form
    1,068/1,602 = 298.50/x
  3. Step 3: Cross multiply
    1,068x = 1,602 × 298.50
  4. Step 4: Simplify right side
    1,068x = 478,197
  5. Step 5: Solve for x
    x = 478,197/1,068
  6. Step 6: Final answer
    x = 447.75

Related Problems

Find fourth proportional to 534, 801 and 149.25
Half scale
Find fourth proportional to 2,136, 3,204 and 597
Double scale
Find fourth proportional to 1,069, 1,603.50 and 299.50
Similar ratio
Find fourth proportional to 1,602, 2,403 and 447.75
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.