Home / 1,403.68-1,937.28-814.24

Finding the Fourth Proportional to 1,403.68, 1,937.28 and 814.24

Calculator

Solution

The fourth proportional to 1,403.68, 1,937.28 and 814.24 is: 1,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.68 : 1,937.28 = 814.24 : x
  2. Step 2: Convert to fraction form
    1,403.68/1,937.28 = 814.24/x
  3. Step 3: Cross multiply
    1,403.68x = 1,937.28 × 814.24
  4. Step 4: Simplify right side
    1,403.68x = 1,577,410.87
  5. Step 5: Solve for x
    x = 1,577,410.87/1,403.68
  6. Step 6: Final answer
    x = 1,123.77

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.