Home / 1,035-1,552.50-265.50

Finding the Fourth Proportional to 1,035, 1,552.50 and 265.50

Calculator

Solution

The fourth proportional to 1,035, 1,552.50 and 265.50 is: 398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035 : 1,552.50 = 265.50 : x
  2. Step 2: Convert to fraction form
    1,035/1,552.50 = 265.50/x
  3. Step 3: Cross multiply
    1,035x = 1,552.50 × 265.50
  4. Step 4: Simplify right side
    1,035x = 412,188.75
  5. Step 5: Solve for x
    x = 412,188.75/1,035
  6. Step 6: Final answer
    x = 398.25

Related Problems

Find fourth proportional to 517.50, 776.25 and 132.75
Half scale
Find fourth proportional to 2,070, 3,105 and 531
Double scale
Find fourth proportional to 1,036, 1,554 and 266.50
Similar ratio
Find fourth proportional to 1,552.50, 2,328.75 and 398.25
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.