Home / 9,084.75-13,629.29-2,928.75

Finding the Fourth Proportional to 9,084.75, 13,629.29 and 2,928.75

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Solution

The fourth proportional to 9,084.75, 13,629.29 and 2,928.75 is: 4,393.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,084.75 : 13,629.29 = 2,928.75 : x
  2. Step 2: Convert to fraction form
    9,084.75/13,629.29 = 2,928.75/x
  3. Step 3: Cross multiply
    9,084.75x = 13,629.29 × 2,928.75
  4. Step 4: Simplify right side
    9,084.75x = 39,916,768.44
  5. Step 5: Solve for x
    x = 39,916,768.44/9,084.75
  6. Step 6: Final answer
    x = 4,393.82

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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.