Home / 3,275.78-4,910.53-2,102.50

Finding the Fourth Proportional to 3,275.78, 4,910.53 and 2,102.50

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Solution

The fourth proportional to 3,275.78, 4,910.53 and 2,102.50 is: 3,151.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.78 : 4,910.53 = 2,102.50 : x
  2. Step 2: Convert to fraction form
    3,275.78/4,910.53 = 2,102.50/x
  3. Step 3: Cross multiply
    3,275.78x = 4,910.53 × 2,102.50
  4. Step 4: Simplify right side
    3,275.78x = 10,324,389.33
  5. Step 5: Solve for x
    x = 10,324,389.33/3,275.78
  6. Step 6: Final answer
    x = 3,151.73

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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.