Home / 1,253-1,879.50-341

Finding the Fourth Proportional to 1,253, 1,879.50 and 341

Calculator

Solution

The fourth proportional to 1,253, 1,879.50 and 341 is: 511.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253 : 1,879.50 = 341 : x
  2. Step 2: Convert to fraction form
    1,253/1,879.50 = 341/x
  3. Step 3: Cross multiply
    1,253x = 1,879.50 × 341
  4. Step 4: Simplify right side
    1,253x = 640,909.50
  5. Step 5: Solve for x
    x = 640,909.50/1,253
  6. Step 6: Final answer
    x = 511.50

Related Problems

Find fourth proportional to 626.50, 939.75 and 170.50
Half scale
Find fourth proportional to 2,506, 3,759 and 682
Double scale
Find fourth proportional to 1,254, 1,881 and 342
Similar ratio
Find fourth proportional to 1,879.50, 2,819.25 and 511.50
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.