Home / 4,221.72-6,338.93-3,308.58

Finding the Fourth Proportional to 4,221.72, 6,338.93 and 3,308.58

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Solution

The fourth proportional to 4,221.72, 6,338.93 and 3,308.58 is: 4,967.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.72 : 6,338.93 = 3,308.58 : x
  2. Step 2: Convert to fraction form
    4,221.72/6,338.93 = 3,308.58/x
  3. Step 3: Cross multiply
    4,221.72x = 6,338.93 × 3,308.58
  4. Step 4: Simplify right side
    4,221.72x = 20,972,840.48
  5. Step 5: Solve for x
    x = 20,972,840.48/4,221.72
  6. Step 6: Final answer
    x = 4,967.84

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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.