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Finding the Fourth Proportional to 3,995.68, 5,992.12 and 1,531.20

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Solution

The fourth proportional to 3,995.68, 5,992.12 and 1,531.20 is: 2,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.68 : 5,992.12 = 1,531.20 : x
  2. Step 2: Convert to fraction form
    3,995.68/5,992.12 = 1,531.20/x
  3. Step 3: Cross multiply
    3,995.68x = 5,992.12 × 1,531.20
  4. Step 4: Simplify right side
    3,995.68x = 9,175,134.14
  5. Step 5: Solve for x
    x = 9,175,134.14/3,995.68
  6. Step 6: Final answer
    x = 2,296.26

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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.