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Finding the Fourth Proportional to 3,636.36, 5,454.73 and 1,879.50

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Solution

The fourth proportional to 3,636.36, 5,454.73 and 1,879.50 is: 2,819.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.36 : 5,454.73 = 1,879.50 : x
  2. Step 2: Convert to fraction form
    3,636.36/5,454.73 = 1,879.50/x
  3. Step 3: Cross multiply
    3,636.36x = 5,454.73 × 1,879.50
  4. Step 4: Simplify right side
    3,636.36x = 10,252,139.08
  5. Step 5: Solve for x
    x = 10,252,139.08/3,636.36
  6. Step 6: Final answer
    x = 2,819.34

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1.5x scale

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.