Home / 1,428.08-2,142.14-606.15

Finding the Fourth Proportional to 1,428.08, 2,142.14 and 606.15

Calculator

Solution

The fourth proportional to 1,428.08, 2,142.14 and 606.15 is: 909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428.08 : 2,142.14 = 606.15 : x
  2. Step 2: Convert to fraction form
    1,428.08/2,142.14 = 606.15/x
  3. Step 3: Cross multiply
    1,428.08x = 2,142.14 × 606.15
  4. Step 4: Simplify right side
    1,428.08x = 1,298,455.13
  5. Step 5: Solve for x
    x = 1,298,455.13/1,428.08
  6. Step 6: Final answer
    x = 909.23

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.