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Finding the Fourth Proportional to 3,994.76, 5,992.65 and 2,143.34

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Solution

The fourth proportional to 3,994.76, 5,992.65 and 2,143.34 is: 3,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.76 : 5,992.65 = 2,143.34 : x
  2. Step 2: Convert to fraction form
    3,994.76/5,992.65 = 2,143.34/x
  3. Step 3: Cross multiply
    3,994.76x = 5,992.65 × 2,143.34
  4. Step 4: Simplify right side
    3,994.76x = 12,844,278.96
  5. Step 5: Solve for x
    x = 12,844,278.96/3,994.76
  6. Step 6: Final answer
    x = 3,215.28

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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.