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Finding the Fourth Proportional to 3,905.58, 5,852.21 and 3,171.59

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Solution

The fourth proportional to 3,905.58, 5,852.21 and 3,171.59 is: 4,752.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.58 : 5,852.21 = 3,171.59 : x
  2. Step 2: Convert to fraction form
    3,905.58/5,852.21 = 3,171.59/x
  3. Step 3: Cross multiply
    3,905.58x = 5,852.21 × 3,171.59
  4. Step 4: Simplify right side
    3,905.58x = 18,560,765.59
  5. Step 5: Solve for x
    x = 18,560,765.59/3,905.58
  6. Step 6: Final answer
    x = 4,752.37

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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.