Home / 3,201.70-4,802.55-3,181.21

Finding the Fourth Proportional to 3,201.70, 4,802.55 and 3,181.21

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Solution

The fourth proportional to 3,201.70, 4,802.55 and 3,181.21 is: 4,771.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.70 : 4,802.55 = 3,181.21 : x
  2. Step 2: Convert to fraction form
    3,201.70/4,802.55 = 3,181.21/x
  3. Step 3: Cross multiply
    3,201.70x = 4,802.55 × 3,181.21
  4. Step 4: Simplify right side
    3,201.70x = 15,277,920.09
  5. Step 5: Solve for x
    x = 15,277,920.09/3,201.70
  6. Step 6: Final answer
    x = 4,771.82

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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.