Home / 1,040-1,435.32-626

Finding the Fourth Proportional to 1,040, 1,435.32 and 626

Calculator

Solution

The fourth proportional to 1,040, 1,435.32 and 626 is: 863.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040 : 1,435.32 = 626 : x
  2. Step 2: Convert to fraction form
    1,040/1,435.32 = 626/x
  3. Step 3: Cross multiply
    1,040x = 1,435.32 × 626
  4. Step 4: Simplify right side
    1,040x = 898,510.32
  5. Step 5: Solve for x
    x = 898,510.32/1,040
  6. Step 6: Final answer
    x = 863.95

Related Problems

Find fourth proportional to 520, 717.66 and 313
Half scale
Find fourth proportional to 2,080, 2,870.64 and 1,252
Double scale
Find fourth proportional to 1,041, 1,436.70 and 627
Similar ratio
Find fourth proportional to 1,560, 2,152.98 and 939
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.