Home / 1,815.44-2,723.36-516.96

Finding the Fourth Proportional to 1,815.44, 2,723.36 and 516.96

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Solution

The fourth proportional to 1,815.44, 2,723.36 and 516.96 is: 775.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.44 : 2,723.36 = 516.96 : x
  2. Step 2: Convert to fraction form
    1,815.44/2,723.36 = 516.96/x
  3. Step 3: Cross multiply
    1,815.44x = 2,723.36 × 516.96
  4. Step 4: Simplify right side
    1,815.44x = 1,407,868.19
  5. Step 5: Solve for x
    x = 1,407,868.19/1,815.44
  6. Step 6: Final answer
    x = 775.50

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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.