Home / 3,429.25-5,143.80-1,580.37

Finding the Fourth Proportional to 3,429.25, 5,143.80 and 1,580.37

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Solution

The fourth proportional to 3,429.25, 5,143.80 and 1,580.37 is: 2,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.25 : 5,143.80 = 1,580.37 : x
  2. Step 2: Convert to fraction form
    3,429.25/5,143.80 = 1,580.37/x
  3. Step 3: Cross multiply
    3,429.25x = 5,143.80 × 1,580.37
  4. Step 4: Simplify right side
    3,429.25x = 8,129,107.21
  5. Step 5: Solve for x
    x = 8,129,107.21/3,429.25
  6. Step 6: Final answer
    x = 2,370.52

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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.