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Finding the Fourth Proportional to 3,977.92, 5,955 and 3,281.32

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Solution

The fourth proportional to 3,977.92, 5,955 and 3,281.32 is: 4,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.92 : 5,955 = 3,281.32 : x
  2. Step 2: Convert to fraction form
    3,977.92/5,955 = 3,281.32/x
  3. Step 3: Cross multiply
    3,977.92x = 5,955 × 3,281.32
  4. Step 4: Simplify right side
    3,977.92x = 19,540,260.60
  5. Step 5: Solve for x
    x = 19,540,260.60/3,977.92
  6. Step 6: Final answer
    x = 4,912.18

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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.