Home / 3,936.66-5,432.42-2,256.86

Finding the Fourth Proportional to 3,936.66, 5,432.42 and 2,256.86

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Solution

The fourth proportional to 3,936.66, 5,432.42 and 2,256.86 is: 3,114.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.66 : 5,432.42 = 2,256.86 : x
  2. Step 2: Convert to fraction form
    3,936.66/5,432.42 = 2,256.86/x
  3. Step 3: Cross multiply
    3,936.66x = 5,432.42 × 2,256.86
  4. Step 4: Simplify right side
    3,936.66x = 12,260,211.40
  5. Step 5: Solve for x
    x = 12,260,211.40/3,936.66
  6. Step 6: Final answer
    x = 3,114.37

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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.