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Finding the Fourth Proportional to 3,746.79, 5,169.62 and 2,173.97

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Solution

The fourth proportional to 3,746.79, 5,169.62 and 2,173.97 is: 2,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.79 : 5,169.62 = 2,173.97 : x
  2. Step 2: Convert to fraction form
    3,746.79/5,169.62 = 2,173.97/x
  3. Step 3: Cross multiply
    3,746.79x = 5,169.62 × 2,173.97
  4. Step 4: Simplify right side
    3,746.79x = 11,238,617.15
  5. Step 5: Solve for x
    x = 11,238,617.15/3,746.79
  6. Step 6: Final answer
    x = 2,999.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.