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Finding the Fourth Proportional to 7,289.82, 10,929.24 and 4,512.24

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Solution

The fourth proportional to 7,289.82, 10,929.24 and 4,512.24 is: 6,764.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.82 : 10,929.24 = 4,512.24 : x
  2. Step 2: Convert to fraction form
    7,289.82/10,929.24 = 4,512.24/x
  3. Step 3: Cross multiply
    7,289.82x = 10,929.24 × 4,512.24
  4. Step 4: Simplify right side
    7,289.82x = 49,315,353.90
  5. Step 5: Solve for x
    x = 49,315,353.90/7,289.82
  6. Step 6: Final answer
    x = 6,764.96

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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.