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Finding the Fourth Proportional to 7,273.65, 10,917.30 and 3,578.55

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Solution

The fourth proportional to 7,273.65, 10,917.30 and 3,578.55 is: 5,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.65 : 10,917.30 = 3,578.55 : x
  2. Step 2: Convert to fraction form
    7,273.65/10,917.30 = 3,578.55/x
  3. Step 3: Cross multiply
    7,273.65x = 10,917.30 × 3,578.55
  4. Step 4: Simplify right side
    7,273.65x = 39,068,103.92
  5. Step 5: Solve for x
    x = 39,068,103.92/7,273.65
  6. Step 6: Final answer
    x = 5,371.18

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1.5x scale

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.