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Finding the Fourth Proportional to 2,114.52, 3,171.74 and 575.48

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Solution

The fourth proportional to 2,114.52, 3,171.74 and 575.48 is: 863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.52 : 3,171.74 = 575.48 : x
  2. Step 2: Convert to fraction form
    2,114.52/3,171.74 = 575.48/x
  3. Step 3: Cross multiply
    2,114.52x = 3,171.74 × 575.48
  4. Step 4: Simplify right side
    2,114.52x = 1,825,272.94
  5. Step 5: Solve for x
    x = 1,825,272.94/2,114.52
  6. Step 6: Final answer
    x = 863.21

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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.