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Finding the Fourth Proportional to 3,530.25, 4,871.48 and 1,936.64

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Solution

The fourth proportional to 3,530.25, 4,871.48 and 1,936.64 is: 2,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.25 : 4,871.48 = 1,936.64 : x
  2. Step 2: Convert to fraction form
    3,530.25/4,871.48 = 1,936.64/x
  3. Step 3: Cross multiply
    3,530.25x = 4,871.48 × 1,936.64
  4. Step 4: Simplify right side
    3,530.25x = 9,434,268.99
  5. Step 5: Solve for x
    x = 9,434,268.99/3,530.25
  6. Step 6: Final answer
    x = 2,672.41

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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.