Home / 3,278.34-4,905.32-1,962.81

Finding the Fourth Proportional to 3,278.34, 4,905.32 and 1,962.81

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Solution

The fourth proportional to 3,278.34, 4,905.32 and 1,962.81 is: 2,936.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.34 : 4,905.32 = 1,962.81 : x
  2. Step 2: Convert to fraction form
    3,278.34/4,905.32 = 1,962.81/x
  3. Step 3: Cross multiply
    3,278.34x = 4,905.32 × 1,962.81
  4. Step 4: Simplify right side
    3,278.34x = 9,628,201.34
  5. Step 5: Solve for x
    x = 9,628,201.34/3,278.34
  6. Step 6: Final answer
    x = 2,936.91

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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.