Home / 4,105.85-6,158.37-1,331.74

Finding the Fourth Proportional to 4,105.85, 6,158.37 and 1,331.74

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Solution

The fourth proportional to 4,105.85, 6,158.37 and 1,331.74 is: 1,997.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.85 : 6,158.37 = 1,331.74 : x
  2. Step 2: Convert to fraction form
    4,105.85/6,158.37 = 1,331.74/x
  3. Step 3: Cross multiply
    4,105.85x = 6,158.37 × 1,331.74
  4. Step 4: Simplify right side
    4,105.85x = 8,201,316.87
  5. Step 5: Solve for x
    x = 8,201,316.87/4,105.85
  6. Step 6: Final answer
    x = 1,997.47

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Double scale
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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.