Home / 3,857.44-5,323.56-2,285.86

Finding the Fourth Proportional to 3,857.44, 5,323.56 and 2,285.86

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Solution

The fourth proportional to 3,857.44, 5,323.56 and 2,285.86 is: 3,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.44 : 5,323.56 = 2,285.86 : x
  2. Step 2: Convert to fraction form
    3,857.44/5,323.56 = 2,285.86/x
  3. Step 3: Cross multiply
    3,857.44x = 5,323.56 × 2,285.86
  4. Step 4: Simplify right side
    3,857.44x = 12,168,912.86
  5. Step 5: Solve for x
    x = 12,168,912.86/3,857.44
  6. Step 6: Final answer
    x = 3,154.66

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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.