Home / 3,289.16-4,933.71-2,120.93

Finding the Fourth Proportional to 3,289.16, 4,933.71 and 2,120.93

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Solution

The fourth proportional to 3,289.16, 4,933.71 and 2,120.93 is: 3,181.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.16 : 4,933.71 = 2,120.93 : x
  2. Step 2: Convert to fraction form
    3,289.16/4,933.71 = 2,120.93/x
  3. Step 3: Cross multiply
    3,289.16x = 4,933.71 × 2,120.93
  4. Step 4: Simplify right side
    3,289.16x = 10,464,053.55
  5. Step 5: Solve for x
    x = 10,464,053.55/3,289.16
  6. Step 6: Final answer
    x = 3,181.38

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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.