Home / 3,633.70-5,015.58-2,142.10

Finding the Fourth Proportional to 3,633.70, 5,015.58 and 2,142.10

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Solution

The fourth proportional to 3,633.70, 5,015.58 and 2,142.10 is: 2,956.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,633.70 : 5,015.58 = 2,142.10 : x
  2. Step 2: Convert to fraction form
    3,633.70/5,015.58 = 2,142.10/x
  3. Step 3: Cross multiply
    3,633.70x = 5,015.58 × 2,142.10
  4. Step 4: Simplify right side
    3,633.70x = 10,743,873.92
  5. Step 5: Solve for x
    x = 10,743,873.92/3,633.70
  6. Step 6: Final answer
    x = 2,956.73

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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.