Home / 3,126.75-4,684.79-2,732.40

Finding the Fourth Proportional to 3,126.75, 4,684.79 and 2,732.40

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Solution

The fourth proportional to 3,126.75, 4,684.79 and 2,732.40 is: 4,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.75 : 4,684.79 = 2,732.40 : x
  2. Step 2: Convert to fraction form
    3,126.75/4,684.79 = 2,732.40/x
  3. Step 3: Cross multiply
    3,126.75x = 4,684.79 × 2,732.40
  4. Step 4: Simplify right side
    3,126.75x = 12,800,711.66
  5. Step 5: Solve for x
    x = 12,800,711.66/3,126.75
  6. Step 6: Final answer
    x = 4,093.93

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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.