Home / 1,777.32-2,666-623.08

Finding the Fourth Proportional to 1,777.32, 2,666 and 623.08

Calculator

Solution

The fourth proportional to 1,777.32, 2,666 and 623.08 is: 934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.32 : 2,666 = 623.08 : x
  2. Step 2: Convert to fraction form
    1,777.32/2,666 = 623.08/x
  3. Step 3: Cross multiply
    1,777.32x = 2,666 × 623.08
  4. Step 4: Simplify right side
    1,777.32x = 1,661,131.28
  5. Step 5: Solve for x
    x = 1,661,131.28/1,777.32
  6. Step 6: Final answer
    x = 934.63

Related Problems

Find fourth proportional to 888.66, 1,333 and 311.54
Half scale
Find fourth proportional to 3,554.64, 5,332 and 1,246.16
Double scale
Find fourth proportional to 1,778.32, 2,667.50 and 624.08
Similar ratio
Find fourth proportional to 2,665.98, 3,999 and 934.62
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.