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Finding the Fourth Proportional to 2,917.96, 4,377 and 1,627.64

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Solution

The fourth proportional to 2,917.96, 4,377 and 1,627.64 is: 2,441.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.96 : 4,377 = 1,627.64 : x
  2. Step 2: Convert to fraction form
    2,917.96/4,377 = 1,627.64/x
  3. Step 3: Cross multiply
    2,917.96x = 4,377 × 1,627.64
  4. Step 4: Simplify right side
    2,917.96x = 7,124,180.28
  5. Step 5: Solve for x
    x = 7,124,180.28/2,917.96
  6. Step 6: Final answer
    x = 2,441.49

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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.