Home / 5,421.21-7,481.79-3,296.25

Finding the Fourth Proportional to 5,421.21, 7,481.79 and 3,296.25

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Solution

The fourth proportional to 5,421.21, 7,481.79 and 3,296.25 is: 4,549.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.21 : 7,481.79 = 3,296.25 : x
  2. Step 2: Convert to fraction form
    5,421.21/7,481.79 = 3,296.25/x
  3. Step 3: Cross multiply
    5,421.21x = 7,481.79 × 3,296.25
  4. Step 4: Simplify right side
    5,421.21x = 24,661,850.29
  5. Step 5: Solve for x
    x = 24,661,850.29/5,421.21
  6. Step 6: Final answer
    x = 4,549.14

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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.