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Finding the Fourth Proportional to 3,334.46, 5,000.78 and 994.36

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Solution

The fourth proportional to 3,334.46, 5,000.78 and 994.36 is: 1,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,334.46 : 5,000.78 = 994.36 : x
  2. Step 2: Convert to fraction form
    3,334.46/5,000.78 = 994.36/x
  3. Step 3: Cross multiply
    3,334.46x = 5,000.78 × 994.36
  4. Step 4: Simplify right side
    3,334.46x = 4,972,575.60
  5. Step 5: Solve for x
    x = 4,972,575.60/3,334.46
  6. Step 6: Final answer
    x = 1,491.27

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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.