Home / 875.91-1,306.12-816.33

Finding the Fourth Proportional to 875.91, 1,306.12 and 816.33

Calculator

Solution

The fourth proportional to 875.91, 1,306.12 and 816.33 is: 1,217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    875.91 : 1,306.12 = 816.33 : x
  2. Step 2: Convert to fraction form
    875.91/1,306.12 = 816.33/x
  3. Step 3: Cross multiply
    875.91x = 1,306.12 × 816.33
  4. Step 4: Simplify right side
    875.91x = 1,066,222.90
  5. Step 5: Solve for x
    x = 1,066,222.90/875.91
  6. Step 6: Final answer
    x = 1,217.27

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.