Home / 682.70-942.72-536

Finding the Fourth Proportional to 682.70, 942.72 and 536

Calculator

Solution

The fourth proportional to 682.70, 942.72 and 536 is: 740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.70 : 942.72 = 536 : x
  2. Step 2: Convert to fraction form
    682.70/942.72 = 536/x
  3. Step 3: Cross multiply
    682.70x = 942.72 × 536
  4. Step 4: Simplify right side
    682.70x = 505,297.92
  5. Step 5: Solve for x
    x = 505,297.92/682.70
  6. Step 6: Final answer
    x = 740.15

Related Problems

Find fourth proportional to 341.35, 471.36 and 268
Half scale
Find fourth proportional to 1,365.40, 1,885.44 and 1,072
Double scale
Find fourth proportional to 683.70, 944.10 and 537
Similar ratio
Find fourth proportional to 1,024.05, 1,414.08 and 804
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.