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Finding the Fourth Proportional to 3,929.36, 5,893.43 and 3,712.49

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Solution

The fourth proportional to 3,929.36, 5,893.43 and 3,712.49 is: 5,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.36 : 5,893.43 = 3,712.49 : x
  2. Step 2: Convert to fraction form
    3,929.36/5,893.43 = 3,712.49/x
  3. Step 3: Cross multiply
    3,929.36x = 5,893.43 × 3,712.49
  4. Step 4: Simplify right side
    3,929.36x = 21,879,251.91
  5. Step 5: Solve for x
    x = 21,879,251.91/3,929.36
  6. Step 6: Final answer
    x = 5,568.15

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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.