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Finding the Fourth Proportional to 3,995.36, 5,990.74 and 1,528.64

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Solution

The fourth proportional to 3,995.36, 5,990.74 and 1,528.64 is: 2,292.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.36 : 5,990.74 = 1,528.64 : x
  2. Step 2: Convert to fraction form
    3,995.36/5,990.74 = 1,528.64/x
  3. Step 3: Cross multiply
    3,995.36x = 5,990.74 × 1,528.64
  4. Step 4: Simplify right side
    3,995.36x = 9,157,651.02
  5. Step 5: Solve for x
    x = 9,157,651.02/3,995.36
  6. Step 6: Final answer
    x = 2,292.07

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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.