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Finding the Fourth Proportional to 3,924.69, 5,887.86 and 1,951.39

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Solution

The fourth proportional to 3,924.69, 5,887.86 and 1,951.39 is: 2,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.69 : 5,887.86 = 1,951.39 : x
  2. Step 2: Convert to fraction form
    3,924.69/5,887.86 = 1,951.39/x
  3. Step 3: Cross multiply
    3,924.69x = 5,887.86 × 1,951.39
  4. Step 4: Simplify right side
    3,924.69x = 11,489,511.13
  5. Step 5: Solve for x
    x = 11,489,511.13/3,924.69
  6. Step 6: Final answer
    x = 2,927.50

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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.