Home / 2,715.26-4,063.64-2,101.71

Finding the Fourth Proportional to 2,715.26, 4,063.64 and 2,101.71

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Solution

The fourth proportional to 2,715.26, 4,063.64 and 2,101.71 is: 3,145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.26 : 4,063.64 = 2,101.71 : x
  2. Step 2: Convert to fraction form
    2,715.26/4,063.64 = 2,101.71/x
  3. Step 3: Cross multiply
    2,715.26x = 4,063.64 × 2,101.71
  4. Step 4: Simplify right side
    2,715.26x = 8,540,597.55
  5. Step 5: Solve for x
    x = 8,540,597.55/2,715.26
  6. Step 6: Final answer
    x = 3,145.41

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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.