Home / 3,898.10-5,843.64-1,431.24

Finding the Fourth Proportional to 3,898.10, 5,843.64 and 1,431.24

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Solution

The fourth proportional to 3,898.10, 5,843.64 and 1,431.24 is: 2,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.10 : 5,843.64 = 1,431.24 : x
  2. Step 2: Convert to fraction form
    3,898.10/5,843.64 = 1,431.24/x
  3. Step 3: Cross multiply
    3,898.10x = 5,843.64 × 1,431.24
  4. Step 4: Simplify right side
    3,898.10x = 8,363,651.31
  5. Step 5: Solve for x
    x = 8,363,651.31/3,898.10
  6. Step 6: Final answer
    x = 2,145.57

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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.