Home / 5,148.12-7,725.78-3,591.84

Finding the Fourth Proportional to 5,148.12, 7,725.78 and 3,591.84

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Solution

The fourth proportional to 5,148.12, 7,725.78 and 3,591.84 is: 5,390.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.12 : 7,725.78 = 3,591.84 : x
  2. Step 2: Convert to fraction form
    5,148.12/7,725.78 = 3,591.84/x
  3. Step 3: Cross multiply
    5,148.12x = 7,725.78 × 3,591.84
  4. Step 4: Simplify right side
    5,148.12x = 27,749,765.64
  5. Step 5: Solve for x
    x = 27,749,765.64/5,148.12
  6. Step 6: Final answer
    x = 5,390.27

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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.