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Finding the Fourth Proportional to 3,606.87, 4,974.03 and 2,190.79

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Solution

The fourth proportional to 3,606.87, 4,974.03 and 2,190.79 is: 3,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.87 : 4,974.03 = 2,190.79 : x
  2. Step 2: Convert to fraction form
    3,606.87/4,974.03 = 2,190.79/x
  3. Step 3: Cross multiply
    3,606.87x = 4,974.03 × 2,190.79
  4. Step 4: Simplify right side
    3,606.87x = 10,897,042.75
  5. Step 5: Solve for x
    x = 10,897,042.75/3,606.87
  6. Step 6: Final answer
    x = 3,021.19

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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.