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Finding the Fourth Proportional to 3,677.60, 5,069.19 and 2,879.58

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Solution

The fourth proportional to 3,677.60, 5,069.19 and 2,879.58 is: 3,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.60 : 5,069.19 = 2,879.58 : x
  2. Step 2: Convert to fraction form
    3,677.60/5,069.19 = 2,879.58/x
  3. Step 3: Cross multiply
    3,677.60x = 5,069.19 × 2,879.58
  4. Step 4: Simplify right side
    3,677.60x = 14,597,138.14
  5. Step 5: Solve for x
    x = 14,597,138.14/3,677.60
  6. Step 6: Final answer
    x = 3,969.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.