Home / 5,329.92-7,992.21-3,109.51

Finding the Fourth Proportional to 5,329.92, 7,992.21 and 3,109.51

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Solution

The fourth proportional to 5,329.92, 7,992.21 and 3,109.51 is: 4,662.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.92 : 7,992.21 = 3,109.51 : x
  2. Step 2: Convert to fraction form
    5,329.92/7,992.21 = 3,109.51/x
  3. Step 3: Cross multiply
    5,329.92x = 7,992.21 × 3,109.51
  4. Step 4: Simplify right side
    5,329.92x = 24,851,841.37
  5. Step 5: Solve for x
    x = 24,851,841.37/5,329.92
  6. Step 6: Final answer
    x = 4,662.71

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1.5x scale

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.