Home / 732.90-1,097.90-385.72

Finding the Fourth Proportional to 732.90, 1,097.90 and 385.72

Calculator

Solution

The fourth proportional to 732.90, 1,097.90 and 385.72 is: 577.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.90 : 1,097.90 = 385.72 : x
  2. Step 2: Convert to fraction form
    732.90/1,097.90 = 385.72/x
  3. Step 3: Cross multiply
    732.90x = 1,097.90 × 385.72
  4. Step 4: Simplify right side
    732.90x = 423,481.99
  5. Step 5: Solve for x
    x = 423,481.99/732.90
  6. Step 6: Final answer
    x = 577.82

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.