Home / 5,159.52-7,732.79-2,814.65

Finding the Fourth Proportional to 5,159.52, 7,732.79 and 2,814.65

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Solution

The fourth proportional to 5,159.52, 7,732.79 and 2,814.65 is: 4,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.52 : 7,732.79 = 2,814.65 : x
  2. Step 2: Convert to fraction form
    5,159.52/7,732.79 = 2,814.65/x
  3. Step 3: Cross multiply
    5,159.52x = 7,732.79 × 2,814.65
  4. Step 4: Simplify right side
    5,159.52x = 21,765,044.64
  5. Step 5: Solve for x
    x = 21,765,044.64/5,159.52
  6. Step 6: Final answer
    x = 4,218.42

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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.