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Finding the Fourth Proportional to 2,632.55, 3,939.09 and 2,165.99

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Solution

The fourth proportional to 2,632.55, 3,939.09 and 2,165.99 is: 3,240.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632.55 : 3,939.09 = 2,165.99 : x
  2. Step 2: Convert to fraction form
    2,632.55/3,939.09 = 2,165.99/x
  3. Step 3: Cross multiply
    2,632.55x = 3,939.09 × 2,165.99
  4. Step 4: Simplify right side
    2,632.55x = 8,532,009.85
  5. Step 5: Solve for x
    x = 8,532,009.85/2,632.55
  6. Step 6: Final answer
    x = 3,240.97

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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.