Home / 4,105.28-6,158.63-1,331.64

Finding the Fourth Proportional to 4,105.28, 6,158.63 and 1,331.64

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Solution

The fourth proportional to 4,105.28, 6,158.63 and 1,331.64 is: 1,997.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.28 : 6,158.63 = 1,331.64 : x
  2. Step 2: Convert to fraction form
    4,105.28/6,158.63 = 1,331.64/x
  3. Step 3: Cross multiply
    4,105.28x = 6,158.63 × 1,331.64
  4. Step 4: Simplify right side
    4,105.28x = 8,201,081.38
  5. Step 5: Solve for x
    x = 8,201,081.38/4,105.28
  6. Step 6: Final answer
    x = 1,997.69

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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.