Home / 1,421.76-2,133.84-556.68

Finding the Fourth Proportional to 1,421.76, 2,133.84 and 556.68

Calculator

Solution

The fourth proportional to 1,421.76, 2,133.84 and 556.68 is: 835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421.76 : 2,133.84 = 556.68 : x
  2. Step 2: Convert to fraction form
    1,421.76/2,133.84 = 556.68/x
  3. Step 3: Cross multiply
    1,421.76x = 2,133.84 × 556.68
  4. Step 4: Simplify right side
    1,421.76x = 1,187,866.05
  5. Step 5: Solve for x
    x = 1,187,866.05/1,421.76
  6. Step 6: Final answer
    x = 835.49

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.