Home / 4,089.06-6,120.60-3,258

Finding the Fourth Proportional to 4,089.06, 6,120.60 and 3,258

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Solution

The fourth proportional to 4,089.06, 6,120.60 and 3,258 is: 4,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.06 : 6,120.60 = 3,258 : x
  2. Step 2: Convert to fraction form
    4,089.06/6,120.60 = 3,258/x
  3. Step 3: Cross multiply
    4,089.06x = 6,120.60 × 3,258
  4. Step 4: Simplify right side
    4,089.06x = 19,940,914.80
  5. Step 5: Solve for x
    x = 19,940,914.80/4,089.06
  6. Step 6: Final answer
    x = 4,876.65

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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.