Home / 3,390.33-5,085.96-3,185.30

Finding the Fourth Proportional to 3,390.33, 5,085.96 and 3,185.30

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Solution

The fourth proportional to 3,390.33, 5,085.96 and 3,185.30 is: 4,778.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.33 : 5,085.96 = 3,185.30 : x
  2. Step 2: Convert to fraction form
    3,390.33/5,085.96 = 3,185.30/x
  3. Step 3: Cross multiply
    3,390.33x = 5,085.96 × 3,185.30
  4. Step 4: Simplify right side
    3,390.33x = 16,200,309.16
  5. Step 5: Solve for x
    x = 16,200,309.16/3,390.33
  6. Step 6: Final answer
    x = 4,778.38

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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.