Home / 1,005.80-1,508.38-356.38

Finding the Fourth Proportional to 1,005.80, 1,508.38 and 356.38

Calculator

Solution

The fourth proportional to 1,005.80, 1,508.38 and 356.38 is: 534.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005.80 : 1,508.38 = 356.38 : x
  2. Step 2: Convert to fraction form
    1,005.80/1,508.38 = 356.38/x
  3. Step 3: Cross multiply
    1,005.80x = 1,508.38 × 356.38
  4. Step 4: Simplify right side
    1,005.80x = 537,556.46
  5. Step 5: Solve for x
    x = 537,556.46/1,005.80
  6. Step 6: Final answer
    x = 534.46

Related Problems

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.