Home / 3,880.54-5,351.01-2,884.18

Finding the Fourth Proportional to 3,880.54, 5,351.01 and 2,884.18

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Solution

The fourth proportional to 3,880.54, 5,351.01 and 2,884.18 is: 3,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.54 : 5,351.01 = 2,884.18 : x
  2. Step 2: Convert to fraction form
    3,880.54/5,351.01 = 2,884.18/x
  3. Step 3: Cross multiply
    3,880.54x = 5,351.01 × 2,884.18
  4. Step 4: Simplify right side
    3,880.54x = 15,433,276.02
  5. Step 5: Solve for x
    x = 15,433,276.02/3,880.54
  6. Step 6: Final answer
    x = 3,977.09

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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.