Home / 4,221.78-6,331.86-1,624.38

Finding the Fourth Proportional to 4,221.78, 6,331.86 and 1,624.38

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Solution

The fourth proportional to 4,221.78, 6,331.86 and 1,624.38 is: 2,436.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.78 : 6,331.86 = 1,624.38 : x
  2. Step 2: Convert to fraction form
    4,221.78/6,331.86 = 1,624.38/x
  3. Step 3: Cross multiply
    4,221.78x = 6,331.86 × 1,624.38
  4. Step 4: Simplify right side
    4,221.78x = 10,285,346.75
  5. Step 5: Solve for x
    x = 10,285,346.75/4,221.78
  6. Step 6: Final answer
    x = 2,436.26

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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.