Home / 1,145.50-1,718.26-376

Finding the Fourth Proportional to 1,145.50, 1,718.26 and 376

Calculator

Solution

The fourth proportional to 1,145.50, 1,718.26 and 376 is: 564.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145.50 : 1,718.26 = 376 : x
  2. Step 2: Convert to fraction form
    1,145.50/1,718.26 = 376/x
  3. Step 3: Cross multiply
    1,145.50x = 1,718.26 × 376
  4. Step 4: Simplify right side
    1,145.50x = 646,065.76
  5. Step 5: Solve for x
    x = 646,065.76/1,145.50
  6. Step 6: Final answer
    x = 564.00

Related Problems

Find fourth proportional to 572.75, 859.13 and 188
Half scale
Find fourth proportional to 2,291, 3,436.52 and 752
Double scale
Find fourth proportional to 1,146.50, 1,719.76 and 377
Similar ratio
Find fourth proportional to 1,718.25, 2,577.39 and 564
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.