Home / 3,282.78-4,530.70-1,938.64

Finding the Fourth Proportional to 3,282.78, 4,530.70 and 1,938.64

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Solution

The fourth proportional to 3,282.78, 4,530.70 and 1,938.64 is: 2,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,282.78 : 4,530.70 = 1,938.64 : x
  2. Step 2: Convert to fraction form
    3,282.78/4,530.70 = 1,938.64/x
  3. Step 3: Cross multiply
    3,282.78x = 4,530.70 × 1,938.64
  4. Step 4: Simplify right side
    3,282.78x = 8,783,396.25
  5. Step 5: Solve for x
    x = 8,783,396.25/3,282.78
  6. Step 6: Final answer
    x = 2,675.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.