Home / 4,221.72-6,331.14-1,623.96

Finding the Fourth Proportional to 4,221.72, 6,331.14 and 1,623.96

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Solution

The fourth proportional to 4,221.72, 6,331.14 and 1,623.96 is: 2,435.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.72 : 6,331.14 = 1,623.96 : x
  2. Step 2: Convert to fraction form
    4,221.72/6,331.14 = 1,623.96/x
  3. Step 3: Cross multiply
    4,221.72x = 6,331.14 × 1,623.96
  4. Step 4: Simplify right side
    4,221.72x = 10,281,518.11
  5. Step 5: Solve for x
    x = 10,281,518.11/4,221.72
  6. Step 6: Final answer
    x = 2,435.39

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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.