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Finding the Fourth Proportional to 3,474.68, 5,208.24 and 1,281.56

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Solution

The fourth proportional to 3,474.68, 5,208.24 and 1,281.56 is: 1,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.68 : 5,208.24 = 1,281.56 : x
  2. Step 2: Convert to fraction form
    3,474.68/5,208.24 = 1,281.56/x
  3. Step 3: Cross multiply
    3,474.68x = 5,208.24 × 1,281.56
  4. Step 4: Simplify right side
    3,474.68x = 6,674,672.05
  5. Step 5: Solve for x
    x = 6,674,672.05/3,474.68
  6. Step 6: Final answer
    x = 1,920.95

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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.