Home / 1,731.68-2,389.56-985.44

Finding the Fourth Proportional to 1,731.68, 2,389.56 and 985.44

Calculator

Solution

The fourth proportional to 1,731.68, 2,389.56 and 985.44 is: 1,359.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.68 : 2,389.56 = 985.44 : x
  2. Step 2: Convert to fraction form
    1,731.68/2,389.56 = 985.44/x
  3. Step 3: Cross multiply
    1,731.68x = 2,389.56 × 985.44
  4. Step 4: Simplify right side
    1,731.68x = 2,354,768.01
  5. Step 5: Solve for x
    x = 2,354,768.01/1,731.68
  6. Step 6: Final answer
    x = 1,359.82

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.