Home / 5,288-7,928.08-3,208.48

Finding the Fourth Proportional to 5,288, 7,928.08 and 3,208.48

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Solution

The fourth proportional to 5,288, 7,928.08 and 3,208.48 is: 4,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288 : 7,928.08 = 3,208.48 : x
  2. Step 2: Convert to fraction form
    5,288/7,928.08 = 3,208.48/x
  3. Step 3: Cross multiply
    5,288x = 7,928.08 × 3,208.48
  4. Step 4: Simplify right side
    5,288x = 25,437,086.12
  5. Step 5: Solve for x
    x = 25,437,086.12/5,288
  6. Step 6: Final answer
    x = 4,810.34

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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.