Home / 4,179.12-6,269.09-1,405.82

Finding the Fourth Proportional to 4,179.12, 6,269.09 and 1,405.82

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Solution

The fourth proportional to 4,179.12, 6,269.09 and 1,405.82 is: 2,108.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.12 : 6,269.09 = 1,405.82 : x
  2. Step 2: Convert to fraction form
    4,179.12/6,269.09 = 1,405.82/x
  3. Step 3: Cross multiply
    4,179.12x = 6,269.09 × 1,405.82
  4. Step 4: Simplify right side
    4,179.12x = 8,813,173.73
  5. Step 5: Solve for x
    x = 8,813,173.73/4,179.12
  6. Step 6: Final answer
    x = 2,108.86

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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.