Home / 1,103.72-1,654.52-410.21

Finding the Fourth Proportional to 1,103.72, 1,654.52 and 410.21

Calculator

Solution

The fourth proportional to 1,103.72, 1,654.52 and 410.21 is: 614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.72 : 1,654.52 = 410.21 : x
  2. Step 2: Convert to fraction form
    1,103.72/1,654.52 = 410.21/x
  3. Step 3: Cross multiply
    1,103.72x = 1,654.52 × 410.21
  4. Step 4: Simplify right side
    1,103.72x = 678,693.40
  5. Step 5: Solve for x
    x = 678,693.40/1,103.72
  6. Step 6: Final answer
    x = 614.91

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.