Home / 1,441.28-2,162.16-516.89

Finding the Fourth Proportional to 1,441.28, 2,162.16 and 516.89

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Solution

The fourth proportional to 1,441.28, 2,162.16 and 516.89 is: 775.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.28 : 2,162.16 = 516.89 : x
  2. Step 2: Convert to fraction form
    1,441.28/2,162.16 = 516.89/x
  3. Step 3: Cross multiply
    1,441.28x = 2,162.16 × 516.89
  4. Step 4: Simplify right side
    1,441.28x = 1,117,588.07
  5. Step 5: Solve for x
    x = 1,117,588.07/1,441.28
  6. Step 6: Final answer
    x = 775.42

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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.