Home / 2,936.78-4,405.84-1,087.92

Finding the Fourth Proportional to 2,936.78, 4,405.84 and 1,087.92

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Solution

The fourth proportional to 2,936.78, 4,405.84 and 1,087.92 is: 1,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.78 : 4,405.84 = 1,087.92 : x
  2. Step 2: Convert to fraction form
    2,936.78/4,405.84 = 1,087.92/x
  3. Step 3: Cross multiply
    2,936.78x = 4,405.84 × 1,087.92
  4. Step 4: Simplify right side
    2,936.78x = 4,793,201.45
  5. Step 5: Solve for x
    x = 4,793,201.45/2,936.78
  6. Step 6: Final answer
    x = 1,632.13

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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.