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Finding the Fourth Proportional to 5,914.32, 8,162.12 and 3,431.12

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Solution

The fourth proportional to 5,914.32, 8,162.12 and 3,431.12 is: 4,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,914.32 : 8,162.12 = 3,431.12 : x
  2. Step 2: Convert to fraction form
    5,914.32/8,162.12 = 3,431.12/x
  3. Step 3: Cross multiply
    5,914.32x = 8,162.12 × 3,431.12
  4. Step 4: Simplify right side
    5,914.32x = 28,005,213.17
  5. Step 5: Solve for x
    x = 28,005,213.17/5,914.32
  6. Step 6: Final answer
    x = 4,735.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.