Home / 5,317-7,975.32-2,856.62

Finding the Fourth Proportional to 5,317, 7,975.32 and 2,856.62

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Solution

The fourth proportional to 5,317, 7,975.32 and 2,856.62 is: 4,284.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317 : 7,975.32 = 2,856.62 : x
  2. Step 2: Convert to fraction form
    5,317/7,975.32 = 2,856.62/x
  3. Step 3: Cross multiply
    5,317x = 7,975.32 × 2,856.62
  4. Step 4: Simplify right side
    5,317x = 22,782,458.62
  5. Step 5: Solve for x
    x = 22,782,458.62/5,317
  6. Step 6: Final answer
    x = 4,284.83

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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.