Home / 1,309.89-1,964.86-335.97

Finding the Fourth Proportional to 1,309.89, 1,964.86 and 335.97

Calculator

Solution

The fourth proportional to 1,309.89, 1,964.86 and 335.97 is: 503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309.89 : 1,964.86 = 335.97 : x
  2. Step 2: Convert to fraction form
    1,309.89/1,964.86 = 335.97/x
  3. Step 3: Cross multiply
    1,309.89x = 1,964.86 × 335.97
  4. Step 4: Simplify right side
    1,309.89x = 660,133.17
  5. Step 5: Solve for x
    x = 660,133.17/1,309.89
  6. Step 6: Final answer
    x = 503.96

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.