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Finding the Fourth Proportional to 3,202.40, 4,803.72 and 893.84

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Solution

The fourth proportional to 3,202.40, 4,803.72 and 893.84 is: 1,340.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202.40 : 4,803.72 = 893.84 : x
  2. Step 2: Convert to fraction form
    3,202.40/4,803.72 = 893.84/x
  3. Step 3: Cross multiply
    3,202.40x = 4,803.72 × 893.84
  4. Step 4: Simplify right side
    3,202.40x = 4,293,757.08
  5. Step 5: Solve for x
    x = 4,293,757.08/3,202.40
  6. Step 6: Final answer
    x = 1,340.79

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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.