Home / 3,854.38-5,318.60-2,175.70

Finding the Fourth Proportional to 3,854.38, 5,318.60 and 2,175.70

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Solution

The fourth proportional to 3,854.38, 5,318.60 and 2,175.70 is: 3,002.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.38 : 5,318.60 = 2,175.70 : x
  2. Step 2: Convert to fraction form
    3,854.38/5,318.60 = 2,175.70/x
  3. Step 3: Cross multiply
    3,854.38x = 5,318.60 × 2,175.70
  4. Step 4: Simplify right side
    3,854.38x = 11,571,678.02
  5. Step 5: Solve for x
    x = 11,571,678.02/3,854.38
  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.