Home / 3,768.38-5,200.28-2,174.90

Finding the Fourth Proportional to 3,768.38, 5,200.28 and 2,174.90

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Solution

The fourth proportional to 3,768.38, 5,200.28 and 2,174.90 is: 3,001.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.38 : 5,200.28 = 2,174.90 : x
  2. Step 2: Convert to fraction form
    3,768.38/5,200.28 = 2,174.90/x
  3. Step 3: Cross multiply
    3,768.38x = 5,200.28 × 2,174.90
  4. Step 4: Simplify right side
    3,768.38x = 11,310,116.36
  5. Step 5: Solve for x
    x = 11,310,116.36/3,768.38
  6. Step 6: Final answer
    x = 3,001.32

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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.