Home / 2,636.66-3,947.96-2,176.44

Finding the Fourth Proportional to 2,636.66, 3,947.96 and 2,176.44

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Solution

The fourth proportional to 2,636.66, 3,947.96 and 2,176.44 is: 3,258.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.66 : 3,947.96 = 2,176.44 : x
  2. Step 2: Convert to fraction form
    2,636.66/3,947.96 = 2,176.44/x
  3. Step 3: Cross multiply
    2,636.66x = 3,947.96 × 2,176.44
  4. Step 4: Simplify right side
    2,636.66x = 8,592,498.06
  5. Step 5: Solve for x
    x = 8,592,498.06/2,636.66
  6. Step 6: Final answer
    x = 3,258.86

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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.