Home / 3,854.20-5,318.70-2,175.56

Finding the Fourth Proportional to 3,854.20, 5,318.70 and 2,175.56

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Solution

The fourth proportional to 3,854.20, 5,318.70 and 2,175.56 is: 3,002.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.20 : 5,318.70 = 2,175.56 : x
  2. Step 2: Convert to fraction form
    3,854.20/5,318.70 = 2,175.56/x
  3. Step 3: Cross multiply
    3,854.20x = 5,318.70 × 2,175.56
  4. Step 4: Simplify right side
    3,854.20x = 11,571,150.97
  5. Step 5: Solve for x
    x = 11,571,150.97/3,854.20
  6. Step 6: Final answer
    x = 3,002.22

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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.