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Finding the Fourth Proportional to 2,626.02, 3,938.90 and 982.44

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Solution

The fourth proportional to 2,626.02, 3,938.90 and 982.44 is: 1,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.02 : 3,938.90 = 982.44 : x
  2. Step 2: Convert to fraction form
    2,626.02/3,938.90 = 982.44/x
  3. Step 3: Cross multiply
    2,626.02x = 3,938.90 × 982.44
  4. Step 4: Simplify right side
    2,626.02x = 3,869,732.92
  5. Step 5: Solve for x
    x = 3,869,732.92/2,626.02
  6. Step 6: Final answer
    x = 1,473.61

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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.