Home / 1,319.52-1,820.96-730.09

Finding the Fourth Proportional to 1,319.52, 1,820.96 and 730.09

Calculator

Solution

The fourth proportional to 1,319.52, 1,820.96 and 730.09 is: 1,007.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319.52 : 1,820.96 = 730.09 : x
  2. Step 2: Convert to fraction form
    1,319.52/1,820.96 = 730.09/x
  3. Step 3: Cross multiply
    1,319.52x = 1,820.96 × 730.09
  4. Step 4: Simplify right side
    1,319.52x = 1,329,471.06
  5. Step 5: Solve for x
    x = 1,329,471.06/1,319.52
  6. Step 6: Final answer
    x = 1,007.54

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.