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Finding the Fourth Proportional to 3,951.36, 5,927.76 and 2,665.44

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Solution

The fourth proportional to 3,951.36, 5,927.76 and 2,665.44 is: 3,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.36 : 5,927.76 = 2,665.44 : x
  2. Step 2: Convert to fraction form
    3,951.36/5,927.76 = 2,665.44/x
  3. Step 3: Cross multiply
    3,951.36x = 5,927.76 × 2,665.44
  4. Step 4: Simplify right side
    3,951.36x = 15,800,088.61
  5. Step 5: Solve for x
    x = 15,800,088.61/3,951.36
  6. Step 6: Final answer
    x = 3,998.65

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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.