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Finding the Fourth Proportional to 3,993.34, 5,987.58 and 1,528.33

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Solution

The fourth proportional to 3,993.34, 5,987.58 and 1,528.33 is: 2,291.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.34 : 5,987.58 = 1,528.33 : x
  2. Step 2: Convert to fraction form
    3,993.34/5,987.58 = 1,528.33/x
  3. Step 3: Cross multiply
    3,993.34x = 5,987.58 × 1,528.33
  4. Step 4: Simplify right side
    3,993.34x = 9,150,998.14
  5. Step 5: Solve for x
    x = 9,150,998.14/3,993.34
  6. Step 6: Final answer
    x = 2,291.56

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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.