Home / 3,815.45-5,723.86-1,966.07

Finding the Fourth Proportional to 3,815.45, 5,723.86 and 1,966.07

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Solution

The fourth proportional to 3,815.45, 5,723.86 and 1,966.07 is: 2,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.45 : 5,723.86 = 1,966.07 : x
  2. Step 2: Convert to fraction form
    3,815.45/5,723.86 = 1,966.07/x
  3. Step 3: Cross multiply
    3,815.45x = 5,723.86 × 1,966.07
  4. Step 4: Simplify right side
    3,815.45x = 11,253,470.98
  5. Step 5: Solve for x
    x = 11,253,470.98/3,815.45
  6. Step 6: Final answer
    x = 2,949.45

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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.