Home / 4,221.80-6,331.84-1,624.40

Finding the Fourth Proportional to 4,221.80, 6,331.84 and 1,624.40

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Solution

The fourth proportional to 4,221.80, 6,331.84 and 1,624.40 is: 2,436.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.80 : 6,331.84 = 1,624.40 : x
  2. Step 2: Convert to fraction form
    4,221.80/6,331.84 = 1,624.40/x
  3. Step 3: Cross multiply
    4,221.80x = 6,331.84 × 1,624.40
  4. Step 4: Simplify right side
    4,221.80x = 10,285,440.90
  5. Step 5: Solve for x
    x = 10,285,440.90/4,221.80
  6. Step 6: Final answer
    x = 2,436.27

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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.