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Finding the Fourth Proportional to 5,422, 8,133 and 2,346.16

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Solution

The fourth proportional to 5,422, 8,133 and 2,346.16 is: 3,519.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422 : 8,133 = 2,346.16 : x
  2. Step 2: Convert to fraction form
    5,422/8,133 = 2,346.16/x
  3. Step 3: Cross multiply
    5,422x = 8,133 × 2,346.16
  4. Step 4: Simplify right side
    5,422x = 19,081,319.28
  5. Step 5: Solve for x
    x = 19,081,319.28/5,422
  6. Step 6: Final answer
    x = 3,519.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.