Home / 3,936.55-5,432.39-2,235.38

Finding the Fourth Proportional to 3,936.55, 5,432.39 and 2,235.38

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Solution

The fourth proportional to 3,936.55, 5,432.39 and 2,235.38 is: 3,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.55 : 5,432.39 = 2,235.38 : x
  2. Step 2: Convert to fraction form
    3,936.55/5,432.39 = 2,235.38/x
  3. Step 3: Cross multiply
    3,936.55x = 5,432.39 × 2,235.38
  4. Step 4: Simplify right side
    3,936.55x = 12,143,455.96
  5. Step 5: Solve for x
    x = 12,143,455.96/3,936.55
  6. Step 6: Final answer
    x = 3,084.80

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1.5x scale

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.