Home / 3,400.72-5,101.10-1,209.62

Finding the Fourth Proportional to 3,400.72, 5,101.10 and 1,209.62

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Solution

The fourth proportional to 3,400.72, 5,101.10 and 1,209.62 is: 1,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.72 : 5,101.10 = 1,209.62 : x
  2. Step 2: Convert to fraction form
    3,400.72/5,101.10 = 1,209.62/x
  3. Step 3: Cross multiply
    3,400.72x = 5,101.10 × 1,209.62
  4. Step 4: Simplify right side
    3,400.72x = 6,170,400.05
  5. Step 5: Solve for x
    x = 6,170,400.05/3,400.72
  6. Step 6: Final answer
    x = 1,814.44

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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.