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Finding the Fourth Proportional to 5,541.08, 8,311.61 and 1,645.48

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Solution

The fourth proportional to 5,541.08, 8,311.61 and 1,645.48 is: 2,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541.08 : 8,311.61 = 1,645.48 : x
  2. Step 2: Convert to fraction form
    5,541.08/8,311.61 = 1,645.48/x
  3. Step 3: Cross multiply
    5,541.08x = 8,311.61 × 1,645.48
  4. Step 4: Simplify right side
    5,541.08x = 13,676,588.02
  5. Step 5: Solve for x
    x = 13,676,588.02/5,541.08
  6. Step 6: Final answer
    x = 2,468.22

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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.