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Finding the Fourth Proportional to 3,993.35, 5,990.43 and 1,530.23

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Solution

The fourth proportional to 3,993.35, 5,990.43 and 1,530.23 is: 2,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.35 : 5,990.43 = 1,530.23 : x
  2. Step 2: Convert to fraction form
    3,993.35/5,990.43 = 1,530.23/x
  3. Step 3: Cross multiply
    3,993.35x = 5,990.43 × 1,530.23
  4. Step 4: Simplify right side
    3,993.35x = 9,166,705.75
  5. Step 5: Solve for x
    x = 9,166,705.75/3,993.35
  6. Step 6: Final answer
    x = 2,295.50

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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.