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Finding the Fourth Proportional to 3,993.39, 5,990.90 and 1,528.29

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Solution

The fourth proportional to 3,993.39, 5,990.90 and 1,528.29 is: 2,292.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.39 : 5,990.90 = 1,528.29 : x
  2. Step 2: Convert to fraction form
    3,993.39/5,990.90 = 1,528.29/x
  3. Step 3: Cross multiply
    3,993.39x = 5,990.90 × 1,528.29
  4. Step 4: Simplify right side
    3,993.39x = 9,155,824.92
  5. Step 5: Solve for x
    x = 9,155,824.92/3,993.39
  6. Step 6: Final answer
    x = 2,292.74

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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.