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Finding the Fourth Proportional to 3,994.64, 5,991.48 and 1,073.18

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Solution

The fourth proportional to 3,994.64, 5,991.48 and 1,073.18 is: 1,609.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.64 : 5,991.48 = 1,073.18 : x
  2. Step 2: Convert to fraction form
    3,994.64/5,991.48 = 1,073.18/x
  3. Step 3: Cross multiply
    3,994.64x = 5,991.48 × 1,073.18
  4. Step 4: Simplify right side
    3,994.64x = 6,429,936.51
  5. Step 5: Solve for x
    x = 6,429,936.51/3,994.64
  6. Step 6: Final answer
    x = 1,609.64

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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.