Home / 3,161.60-4,742.88-1,517.84

Finding the Fourth Proportional to 3,161.60, 4,742.88 and 1,517.84

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Solution

The fourth proportional to 3,161.60, 4,742.88 and 1,517.84 is: 2,276.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.60 : 4,742.88 = 1,517.84 : x
  2. Step 2: Convert to fraction form
    3,161.60/4,742.88 = 1,517.84/x
  3. Step 3: Cross multiply
    3,161.60x = 4,742.88 × 1,517.84
  4. Step 4: Simplify right side
    3,161.60x = 7,198,932.98
  5. Step 5: Solve for x
    x = 7,198,932.98/3,161.60
  6. Step 6: Final answer
    x = 2,276.99

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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.