Home / 7,195.14-10,791.77-2,815.70

Finding the Fourth Proportional to 7,195.14, 10,791.77 and 2,815.70

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Solution

The fourth proportional to 7,195.14, 10,791.77 and 2,815.70 is: 4,223.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.14 : 10,791.77 = 2,815.70 : x
  2. Step 2: Convert to fraction form
    7,195.14/10,791.77 = 2,815.70/x
  3. Step 3: Cross multiply
    7,195.14x = 10,791.77 × 2,815.70
  4. Step 4: Simplify right side
    7,195.14x = 30,386,318.75
  5. Step 5: Solve for x
    x = 30,386,318.75/7,195.14
  6. Step 6: Final answer
    x = 4,223.17

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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.