Home / 4,120.67-6,179.72-1,487.82

Finding the Fourth Proportional to 4,120.67, 6,179.72 and 1,487.82

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Solution

The fourth proportional to 4,120.67, 6,179.72 and 1,487.82 is: 2,231.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.67 : 6,179.72 = 1,487.82 : x
  2. Step 2: Convert to fraction form
    4,120.67/6,179.72 = 1,487.82/x
  3. Step 3: Cross multiply
    4,120.67x = 6,179.72 × 1,487.82
  4. Step 4: Simplify right side
    4,120.67x = 9,194,303.57
  5. Step 5: Solve for x
    x = 9,194,303.57/4,120.67
  6. Step 6: Final answer
    x = 2,231.27

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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.