Home / 3,880.61-5,355.58-2,202.54

Finding the Fourth Proportional to 3,880.61, 5,355.58 and 2,202.54

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Solution

The fourth proportional to 3,880.61, 5,355.58 and 2,202.54 is: 3,039.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.61 : 5,355.58 = 2,202.54 : x
  2. Step 2: Convert to fraction form
    3,880.61/5,355.58 = 2,202.54/x
  3. Step 3: Cross multiply
    3,880.61x = 5,355.58 × 2,202.54
  4. Step 4: Simplify right side
    3,880.61x = 11,795,841.38
  5. Step 5: Solve for x
    x = 11,795,841.38/3,880.61
  6. Step 6: Final answer
    x = 3,039.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.