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Finding the Fourth Proportional to 3,643.65, 5,027.94 and 2,071.44

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Solution

The fourth proportional to 3,643.65, 5,027.94 and 2,071.44 is: 2,858.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.65 : 5,027.94 = 2,071.44 : x
  2. Step 2: Convert to fraction form
    3,643.65/5,027.94 = 2,071.44/x
  3. Step 3: Cross multiply
    3,643.65x = 5,027.94 × 2,071.44
  4. Step 4: Simplify right side
    3,643.65x = 10,415,076.03
  5. Step 5: Solve for x
    x = 10,415,076.03/3,643.65
  6. Step 6: Final answer
    x = 2,858.42

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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.