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Finding the Fourth Proportional to 7,124.70, 10,687.02 and 2,193

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Solution

The fourth proportional to 7,124.70, 10,687.02 and 2,193 is: 3,289.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.70 : 10,687.02 = 2,193 : x
  2. Step 2: Convert to fraction form
    7,124.70/10,687.02 = 2,193/x
  3. Step 3: Cross multiply
    7,124.70x = 10,687.02 × 2,193
  4. Step 4: Simplify right side
    7,124.70x = 23,436,634.86
  5. Step 5: Solve for x
    x = 23,436,634.86/7,124.70
  6. Step 6: Final answer
    x = 3,289.49

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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.