Home / 2,717.49-4,078.27-1,257.67

Finding the Fourth Proportional to 2,717.49, 4,078.27 and 1,257.67

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Solution

The fourth proportional to 2,717.49, 4,078.27 and 1,257.67 is: 1,887.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.49 : 4,078.27 = 1,257.67 : x
  2. Step 2: Convert to fraction form
    2,717.49/4,078.27 = 1,257.67/x
  3. Step 3: Cross multiply
    2,717.49x = 4,078.27 × 1,257.67
  4. Step 4: Simplify right side
    2,717.49x = 5,129,097.44
  5. Step 5: Solve for x
    x = 5,129,097.44/2,717.49
  6. Step 6: Final answer
    x = 1,887.44

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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.