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Finding the Fourth Proportional to 3,848.06, 5,772.37 and 1,382.90

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Solution

The fourth proportional to 3,848.06, 5,772.37 and 1,382.90 is: 2,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.06 : 5,772.37 = 1,382.90 : x
  2. Step 2: Convert to fraction form
    3,848.06/5,772.37 = 1,382.90/x
  3. Step 3: Cross multiply
    3,848.06x = 5,772.37 × 1,382.90
  4. Step 4: Simplify right side
    3,848.06x = 7,982,578.15
  5. Step 5: Solve for x
    x = 7,982,578.15/3,848.06
  6. Step 6: Final answer
    x = 2,074.44

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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.