Home / 1,020.22-1,529.87-289.63

Finding the Fourth Proportional to 1,020.22, 1,529.87 and 289.63

Calculator

Solution

The fourth proportional to 1,020.22, 1,529.87 and 289.63 is: 434.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.22 : 1,529.87 = 289.63 : x
  2. Step 2: Convert to fraction form
    1,020.22/1,529.87 = 289.63/x
  3. Step 3: Cross multiply
    1,020.22x = 1,529.87 × 289.63
  4. Step 4: Simplify right side
    1,020.22x = 443,090.96
  5. Step 5: Solve for x
    x = 443,090.96/1,020.22
  6. Step 6: Final answer
    x = 434.31

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.