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Finding the Fourth Proportional to 3,994.02, 5,988.87 and 1,395

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Solution

The fourth proportional to 3,994.02, 5,988.87 and 1,395 is: 2,091.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.02 : 5,988.87 = 1,395 : x
  2. Step 2: Convert to fraction form
    3,994.02/5,988.87 = 1,395/x
  3. Step 3: Cross multiply
    3,994.02x = 5,988.87 × 1,395
  4. Step 4: Simplify right side
    3,994.02x = 8,354,473.65
  5. Step 5: Solve for x
    x = 8,354,473.65/3,994.02
  6. Step 6: Final answer
    x = 2,091.75

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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.