Home / 7,328.87-10,989.19-3,166.28

Finding the Fourth Proportional to 7,328.87, 10,989.19 and 3,166.28

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Solution

The fourth proportional to 7,328.87, 10,989.19 and 3,166.28 is: 4,747.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.87 : 10,989.19 = 3,166.28 : x
  2. Step 2: Convert to fraction form
    7,328.87/10,989.19 = 3,166.28/x
  3. Step 3: Cross multiply
    7,328.87x = 10,989.19 × 3,166.28
  4. Step 4: Simplify right side
    7,328.87x = 34,794,789.65
  5. Step 5: Solve for x
    x = 34,794,789.65/7,328.87
  6. Step 6: Final answer
    x = 4,747.64

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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.