Home / 3,774.20-5,208.46-2,281.86

Finding the Fourth Proportional to 3,774.20, 5,208.46 and 2,281.86

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Solution

The fourth proportional to 3,774.20, 5,208.46 and 2,281.86 is: 3,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,774.20 : 5,208.46 = 2,281.86 : x
  2. Step 2: Convert to fraction form
    3,774.20/5,208.46 = 2,281.86/x
  3. Step 3: Cross multiply
    3,774.20x = 5,208.46 × 2,281.86
  4. Step 4: Simplify right side
    3,774.20x = 11,884,976.54
  5. Step 5: Solve for x
    x = 11,884,976.54/3,774.20
  6. Step 6: Final answer
    x = 3,149.01

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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.