Home / 3,278.73-4,915.35-1,332.30

Finding the Fourth Proportional to 3,278.73, 4,915.35 and 1,332.30

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Solution

The fourth proportional to 3,278.73, 4,915.35 and 1,332.30 is: 1,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.73 : 4,915.35 = 1,332.30 : x
  2. Step 2: Convert to fraction form
    3,278.73/4,915.35 = 1,332.30/x
  3. Step 3: Cross multiply
    3,278.73x = 4,915.35 × 1,332.30
  4. Step 4: Simplify right side
    3,278.73x = 6,548,720.81
  5. Step 5: Solve for x
    x = 6,548,720.81/3,278.73
  6. Step 6: Final answer
    x = 1,997.33

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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.