Home / 3,429.67-5,142.75-1,579.18

Finding the Fourth Proportional to 3,429.67, 5,142.75 and 1,579.18

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Solution

The fourth proportional to 3,429.67, 5,142.75 and 1,579.18 is: 2,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.67 : 5,142.75 = 1,579.18 : x
  2. Step 2: Convert to fraction form
    3,429.67/5,142.75 = 1,579.18/x
  3. Step 3: Cross multiply
    3,429.67x = 5,142.75 × 1,579.18
  4. Step 4: Simplify right side
    3,429.67x = 8,121,327.95
  5. Step 5: Solve for x
    x = 8,121,327.95/3,429.67
  6. Step 6: Final answer
    x = 2,367.96

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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.