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Finding the Fourth Proportional to 2,260.05, 3,390.68 and 800.22

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Solution

The fourth proportional to 2,260.05, 3,390.68 and 800.22 is: 1,200.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.05 : 3,390.68 = 800.22 : x
  2. Step 2: Convert to fraction form
    2,260.05/3,390.68 = 800.22/x
  3. Step 3: Cross multiply
    2,260.05x = 3,390.68 × 800.22
  4. Step 4: Simplify right side
    2,260.05x = 2,713,289.95
  5. Step 5: Solve for x
    x = 2,713,289.95/2,260.05
  6. Step 6: Final answer
    x = 1,200.54

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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.