Home / 2,716.72-4,072.28-1,072.60

Finding the Fourth Proportional to 2,716.72, 4,072.28 and 1,072.60

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Solution

The fourth proportional to 2,716.72, 4,072.28 and 1,072.60 is: 1,607.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.72 : 4,072.28 = 1,072.60 : x
  2. Step 2: Convert to fraction form
    2,716.72/4,072.28 = 1,072.60/x
  3. Step 3: Cross multiply
    2,716.72x = 4,072.28 × 1,072.60
  4. Step 4: Simplify right side
    2,716.72x = 4,367,927.53
  5. Step 5: Solve for x
    x = 4,367,927.53/2,716.72
  6. Step 6: Final answer
    x = 1,607.79

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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.