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Finding the Fourth Proportional to 3,787.44, 5,682.12 and 1,479.12

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Solution

The fourth proportional to 3,787.44, 5,682.12 and 1,479.12 is: 2,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.44 : 5,682.12 = 1,479.12 : x
  2. Step 2: Convert to fraction form
    3,787.44/5,682.12 = 1,479.12/x
  3. Step 3: Cross multiply
    3,787.44x = 5,682.12 × 1,479.12
  4. Step 4: Simplify right side
    3,787.44x = 8,404,537.33
  5. Step 5: Solve for x
    x = 8,404,537.33/3,787.44
  6. Step 6: Final answer
    x = 2,219.05

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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.