Home / 3,854.42-5,318.70-2,175.92

Finding the Fourth Proportional to 3,854.42, 5,318.70 and 2,175.92

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Solution

The fourth proportional to 3,854.42, 5,318.70 and 2,175.92 is: 3,002.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.42 : 5,318.70 = 2,175.92 : x
  2. Step 2: Convert to fraction form
    3,854.42/5,318.70 = 2,175.92/x
  3. Step 3: Cross multiply
    3,854.42x = 5,318.70 × 2,175.92
  4. Step 4: Simplify right side
    3,854.42x = 11,573,065.70
  5. Step 5: Solve for x
    x = 11,573,065.70/3,854.42
  6. Step 6: Final answer
    x = 3,002.54

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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.