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Finding the Fourth Proportional to 6,157.16, 9,235.95 and 1,997.21

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Solution

The fourth proportional to 6,157.16, 9,235.95 and 1,997.21 is: 2,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,157.16 : 9,235.95 = 1,997.21 : x
  2. Step 2: Convert to fraction form
    6,157.16/9,235.95 = 1,997.21/x
  3. Step 3: Cross multiply
    6,157.16x = 9,235.95 × 1,997.21
  4. Step 4: Simplify right side
    6,157.16x = 18,446,078.03
  5. Step 5: Solve for x
    x = 18,446,078.03/6,157.16
  6. Step 6: Final answer
    x = 2,995.87

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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.