Home / 4,105.30-6,158.53-1,331.32

Finding the Fourth Proportional to 4,105.30, 6,158.53 and 1,331.32

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Solution

The fourth proportional to 4,105.30, 6,158.53 and 1,331.32 is: 1,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.30 : 6,158.53 = 1,331.32 : x
  2. Step 2: Convert to fraction form
    4,105.30/6,158.53 = 1,331.32/x
  3. Step 3: Cross multiply
    4,105.30x = 6,158.53 × 1,331.32
  4. Step 4: Simplify right side
    4,105.30x = 8,198,974.16
  5. Step 5: Solve for x
    x = 8,198,974.16/4,105.30
  6. Step 6: Final answer
    x = 1,997.17

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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.