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Finding the Fourth Proportional to 2,796.60, 4,188.62 and 2,175.50

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Solution

The fourth proportional to 2,796.60, 4,188.62 and 2,175.50 is: 3,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.60 : 4,188.62 = 2,175.50 : x
  2. Step 2: Convert to fraction form
    2,796.60/4,188.62 = 2,175.50/x
  3. Step 3: Cross multiply
    2,796.60x = 4,188.62 × 2,175.50
  4. Step 4: Simplify right side
    2,796.60x = 9,112,342.81
  5. Step 5: Solve for x
    x = 9,112,342.81/2,796.60
  6. Step 6: Final answer
    x = 3,258.36

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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.