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Finding the Fourth Proportional to 3,193.70, 4,787.70 and 1,245.45

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Solution

The fourth proportional to 3,193.70, 4,787.70 and 1,245.45 is: 1,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.70 : 4,787.70 = 1,245.45 : x
  2. Step 2: Convert to fraction form
    3,193.70/4,787.70 = 1,245.45/x
  3. Step 3: Cross multiply
    3,193.70x = 4,787.70 × 1,245.45
  4. Step 4: Simplify right side
    3,193.70x = 5,962,840.97
  5. Step 5: Solve for x
    x = 5,962,840.97/3,193.70
  6. Step 6: Final answer
    x = 1,867.07

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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.