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Finding the Fourth Proportional to 5,533.71, 7,630.25 and 4,018.20

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Solution

The fourth proportional to 5,533.71, 7,630.25 and 4,018.20 is: 5,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,533.71 : 7,630.25 = 4,018.20 : x
  2. Step 2: Convert to fraction form
    5,533.71/7,630.25 = 4,018.20/x
  3. Step 3: Cross multiply
    5,533.71x = 7,630.25 × 4,018.20
  4. Step 4: Simplify right side
    5,533.71x = 30,659,850.46
  5. Step 5: Solve for x
    x = 30,659,850.46/5,533.71
  6. Step 6: Final answer
    x = 5,540.56

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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.