Home / 3,630.44-5,009.60-2,138.26

Finding the Fourth Proportional to 3,630.44, 5,009.60 and 2,138.26

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Solution

The fourth proportional to 3,630.44, 5,009.60 and 2,138.26 is: 2,950.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.44 : 5,009.60 = 2,138.26 : x
  2. Step 2: Convert to fraction form
    3,630.44/5,009.60 = 2,138.26/x
  3. Step 3: Cross multiply
    3,630.44x = 5,009.60 × 2,138.26
  4. Step 4: Simplify right side
    3,630.44x = 10,711,827.30
  5. Step 5: Solve for x
    x = 10,711,827.30/3,630.44
  6. Step 6: Final answer
    x = 2,950.56

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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.