Home / 3,288.40-4,538.64-1,961.44

Finding the Fourth Proportional to 3,288.40, 4,538.64 and 1,961.44

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Solution

The fourth proportional to 3,288.40, 4,538.64 and 1,961.44 is: 2,707.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.40 : 4,538.64 = 1,961.44 : x
  2. Step 2: Convert to fraction form
    3,288.40/4,538.64 = 1,961.44/x
  3. Step 3: Cross multiply
    3,288.40x = 4,538.64 × 1,961.44
  4. Step 4: Simplify right side
    3,288.40x = 8,902,270.04
  5. Step 5: Solve for x
    x = 8,902,270.04/3,288.40
  6. Step 6: Final answer
    x = 2,707.17

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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.