Home / 3,185.32-4,775.27-1,209.85

Finding the Fourth Proportional to 3,185.32, 4,775.27 and 1,209.85

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Solution

The fourth proportional to 3,185.32, 4,775.27 and 1,209.85 is: 1,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.32 : 4,775.27 = 1,209.85 : x
  2. Step 2: Convert to fraction form
    3,185.32/4,775.27 = 1,209.85/x
  3. Step 3: Cross multiply
    3,185.32x = 4,775.27 × 1,209.85
  4. Step 4: Simplify right side
    3,185.32x = 5,777,360.41
  5. Step 5: Solve for x
    x = 5,777,360.41/3,185.32
  6. Step 6: Final answer
    x = 1,813.75

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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.