Home / 3,409.42-5,109.25-2,712.95

Finding the Fourth Proportional to 3,409.42, 5,109.25 and 2,712.95

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Solution

The fourth proportional to 3,409.42, 5,109.25 and 2,712.95 is: 4,065.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.42 : 5,109.25 = 2,712.95 : x
  2. Step 2: Convert to fraction form
    3,409.42/5,109.25 = 2,712.95/x
  3. Step 3: Cross multiply
    3,409.42x = 5,109.25 × 2,712.95
  4. Step 4: Simplify right side
    3,409.42x = 13,861,139.79
  5. Step 5: Solve for x
    x = 13,861,139.79/3,409.42
  6. Step 6: Final answer
    x = 4,065.54

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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.