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Finding the Fourth Proportional to 4,108.60, 6,161.10 and 1,642.60

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Solution

The fourth proportional to 4,108.60, 6,161.10 and 1,642.60 is: 2,463.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,108.60 : 6,161.10 = 1,642.60 : x
  2. Step 2: Convert to fraction form
    4,108.60/6,161.10 = 1,642.60/x
  3. Step 3: Cross multiply
    4,108.60x = 6,161.10 × 1,642.60
  4. Step 4: Simplify right side
    4,108.60x = 10,120,222.86
  5. Step 5: Solve for x
    x = 10,120,222.86/4,108.60
  6. Step 6: Final answer
    x = 2,463.18

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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.