Home / 1,380.44-2,070.60-514.69

Finding the Fourth Proportional to 1,380.44, 2,070.60 and 514.69

Calculator

Solution

The fourth proportional to 1,380.44, 2,070.60 and 514.69 is: 772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380.44 : 2,070.60 = 514.69 : x
  2. Step 2: Convert to fraction form
    1,380.44/2,070.60 = 514.69/x
  3. Step 3: Cross multiply
    1,380.44x = 2,070.60 × 514.69
  4. Step 4: Simplify right side
    1,380.44x = 1,065,710.01
  5. Step 5: Solve for x
    x = 1,065,710.01/1,380.44
  6. Step 6: Final answer
    x = 772.01

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.