Home / 4,202.87-6,305.67-1,431.30

Finding the Fourth Proportional to 4,202.87, 6,305.67 and 1,431.30

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Solution

The fourth proportional to 4,202.87, 6,305.67 and 1,431.30 is: 2,147.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,202.87 : 6,305.67 = 1,431.30 : x
  2. Step 2: Convert to fraction form
    4,202.87/6,305.67 = 1,431.30/x
  3. Step 3: Cross multiply
    4,202.87x = 6,305.67 × 1,431.30
  4. Step 4: Simplify right side
    4,202.87x = 9,025,305.47
  5. Step 5: Solve for x
    x = 9,025,305.47/4,202.87
  6. Step 6: Final answer
    x = 2,147.42

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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.