Home / 3,400.78-5,101.96-1,453.12

Finding the Fourth Proportional to 3,400.78, 5,101.96 and 1,453.12

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Solution

The fourth proportional to 3,400.78, 5,101.96 and 1,453.12 is: 2,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.78 : 5,101.96 = 1,453.12 : x
  2. Step 2: Convert to fraction form
    3,400.78/5,101.96 = 1,453.12/x
  3. Step 3: Cross multiply
    3,400.78x = 5,101.96 × 1,453.12
  4. Step 4: Simplify right side
    3,400.78x = 7,413,760.12
  5. Step 5: Solve for x
    x = 7,413,760.12/3,400.78
  6. Step 6: Final answer
    x = 2,180.02

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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.