Home / 4,320-5,961.60-3,081.60

Finding the Fourth Proportional to 4,320, 5,961.60 and 3,081.60

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Solution

The fourth proportional to 4,320, 5,961.60 and 3,081.60 is: 4,252.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320 : 5,961.60 = 3,081.60 : x
  2. Step 2: Convert to fraction form
    4,320/5,961.60 = 3,081.60/x
  3. Step 3: Cross multiply
    4,320x = 5,961.60 × 3,081.60
  4. Step 4: Simplify right side
    4,320x = 18,371,266.56
  5. Step 5: Solve for x
    x = 18,371,266.56/4,320
  6. Step 6: Final answer
    x = 4,252.61

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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.