Home / 3,936.55-5,432.34-2,257.69

Finding the Fourth Proportional to 3,936.55, 5,432.34 and 2,257.69

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Solution

The fourth proportional to 3,936.55, 5,432.34 and 2,257.69 is: 3,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.55 : 5,432.34 = 2,257.69 : x
  2. Step 2: Convert to fraction form
    3,936.55/5,432.34 = 2,257.69/x
  3. Step 3: Cross multiply
    3,936.55x = 5,432.34 × 2,257.69
  4. Step 4: Simplify right side
    3,936.55x = 12,264,539.69
  5. Step 5: Solve for x
    x = 12,264,539.69/3,936.55
  6. Step 6: Final answer
    x = 3,115.56

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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.