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Finding the Fourth Proportional to 3,994.52, 5,987.70 and 1,395.32

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Solution

The fourth proportional to 3,994.52, 5,987.70 and 1,395.32 is: 2,091.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.52 : 5,987.70 = 1,395.32 : x
  2. Step 2: Convert to fraction form
    3,994.52/5,987.70 = 1,395.32/x
  3. Step 3: Cross multiply
    3,994.52x = 5,987.70 × 1,395.32
  4. Step 4: Simplify right side
    3,994.52x = 8,354,757.56
  5. Step 5: Solve for x
    x = 8,354,757.56/3,994.52
  6. Step 6: Final answer
    x = 2,091.55

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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.