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Finding the Fourth Proportional to 3,454.28, 4,787.06 and 3,388.64

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Solution

The fourth proportional to 3,454.28, 4,787.06 and 3,388.64 is: 4,696.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.28 : 4,787.06 = 3,388.64 : x
  2. Step 2: Convert to fraction form
    3,454.28/4,787.06 = 3,388.64/x
  3. Step 3: Cross multiply
    3,454.28x = 4,787.06 × 3,388.64
  4. Step 4: Simplify right side
    3,454.28x = 16,221,623.00
  5. Step 5: Solve for x
    x = 16,221,623.00/3,454.28
  6. Step 6: Final answer
    x = 4,696.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.