Home / 2,628.05-3,932.96-2,106.81

Finding the Fourth Proportional to 2,628.05, 3,932.96 and 2,106.81

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Solution

The fourth proportional to 2,628.05, 3,932.96 and 2,106.81 is: 3,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.05 : 3,932.96 = 2,106.81 : x
  2. Step 2: Convert to fraction form
    2,628.05/3,932.96 = 2,106.81/x
  3. Step 3: Cross multiply
    2,628.05x = 3,932.96 × 2,106.81
  4. Step 4: Simplify right side
    2,628.05x = 8,285,988.92
  5. Step 5: Solve for x
    x = 8,285,988.92/2,628.05
  6. Step 6: Final answer
    x = 3,152.91

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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.