Home / 3,276.80-4,917.36-1,427.36

Finding the Fourth Proportional to 3,276.80, 4,917.36 and 1,427.36

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Solution

The fourth proportional to 3,276.80, 4,917.36 and 1,427.36 is: 2,141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.80 : 4,917.36 = 1,427.36 : x
  2. Step 2: Convert to fraction form
    3,276.80/4,917.36 = 1,427.36/x
  3. Step 3: Cross multiply
    3,276.80x = 4,917.36 × 1,427.36
  4. Step 4: Simplify right side
    3,276.80x = 7,018,842.97
  5. Step 5: Solve for x
    x = 7,018,842.97/3,276.80
  6. Step 6: Final answer
    x = 2,141.98

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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.