Home / 5,181.62-7,772.97-2,220.36

Finding the Fourth Proportional to 5,181.62, 7,772.97 and 2,220.36

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Solution

The fourth proportional to 5,181.62, 7,772.97 and 2,220.36 is: 3,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.62 : 7,772.97 = 2,220.36 : x
  2. Step 2: Convert to fraction form
    5,181.62/7,772.97 = 2,220.36/x
  3. Step 3: Cross multiply
    5,181.62x = 7,772.97 × 2,220.36
  4. Step 4: Simplify right side
    5,181.62x = 17,258,791.67
  5. Step 5: Solve for x
    x = 17,258,791.67/5,181.62
  6. Step 6: Final answer
    x = 3,330.77

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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.