Home / 3,402.31-5,105.44-1,323.75

Finding the Fourth Proportional to 3,402.31, 5,105.44 and 1,323.75

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Solution

The fourth proportional to 3,402.31, 5,105.44 and 1,323.75 is: 1,986.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.31 : 5,105.44 = 1,323.75 : x
  2. Step 2: Convert to fraction form
    3,402.31/5,105.44 = 1,323.75/x
  3. Step 3: Cross multiply
    3,402.31x = 5,105.44 × 1,323.75
  4. Step 4: Simplify right side
    3,402.31x = 6,758,303.75
  5. Step 5: Solve for x
    x = 6,758,303.75/3,402.31
  6. Step 6: Final answer
    x = 1,986.39

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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.