Home / 894-1,342.50-826.65

Finding the Fourth Proportional to 894, 1,342.50 and 826.65

Calculator

Solution

The fourth proportional to 894, 1,342.50 and 826.65 is: 1,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    894 : 1,342.50 = 826.65 : x
  2. Step 2: Convert to fraction form
    894/1,342.50 = 826.65/x
  3. Step 3: Cross multiply
    894x = 1,342.50 × 826.65
  4. Step 4: Simplify right side
    894x = 1,109,777.63
  5. Step 5: Solve for x
    x = 1,109,777.63/894
  6. Step 6: Final answer
    x = 1,241.36

Related Problems

Find fourth proportional to 447, 671.25 and 413.33
Half scale
Find fourth proportional to 1,788, 2,685 and 1,653.30
Double scale
Find fourth proportional to 895, 1,344 and 827.65
Similar ratio
Find fourth proportional to 1,341, 2,013.75 and 1,239.98
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.