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Finding the Fourth Proportional to 7,867.58, 11,803.10 and 2,604.20

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Solution

The fourth proportional to 7,867.58, 11,803.10 and 2,604.20 is: 3,906.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.58 : 11,803.10 = 2,604.20 : x
  2. Step 2: Convert to fraction form
    7,867.58/11,803.10 = 2,604.20/x
  3. Step 3: Cross multiply
    7,867.58x = 11,803.10 × 2,604.20
  4. Step 4: Simplify right side
    7,867.58x = 30,737,560.98
  5. Step 5: Solve for x
    x = 30,737,560.98/7,867.58
  6. Step 6: Final answer
    x = 3,906.87

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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.