Home / 1,355.13-2,033.10-430.82

Finding the Fourth Proportional to 1,355.13, 2,033.10 and 430.82

Calculator

Solution

The fourth proportional to 1,355.13, 2,033.10 and 430.82 is: 646.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.13 : 2,033.10 = 430.82 : x
  2. Step 2: Convert to fraction form
    1,355.13/2,033.10 = 430.82/x
  3. Step 3: Cross multiply
    1,355.13x = 2,033.10 × 430.82
  4. Step 4: Simplify right side
    1,355.13x = 875,897.60
  5. Step 5: Solve for x
    x = 875,897.60/1,355.13
  6. Step 6: Final answer
    x = 646.36

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.