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Finding the Fourth Proportional to 2,626.92, 3,935.97 and 1,308.87

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Solution

The fourth proportional to 2,626.92, 3,935.97 and 1,308.87 is: 1,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.92 : 3,935.97 = 1,308.87 : x
  2. Step 2: Convert to fraction form
    2,626.92/3,935.97 = 1,308.87/x
  3. Step 3: Cross multiply
    2,626.92x = 3,935.97 × 1,308.87
  4. Step 4: Simplify right side
    2,626.92x = 5,151,673.05
  5. Step 5: Solve for x
    x = 5,151,673.05/2,626.92
  6. Step 6: Final answer
    x = 1,961.11

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1.5x scale

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.