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Finding the Fourth Proportional to 2,172.00, 3,258.01 and 528.55

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Solution

The fourth proportional to 2,172.00, 3,258.01 and 528.55 is: 792.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.00 : 3,258.01 = 528.55 : x
  2. Step 2: Convert to fraction form
    2,172.00/3,258.01 = 528.55/x
  3. Step 3: Cross multiply
    2,172.00x = 3,258.01 × 528.55
  4. Step 4: Simplify right side
    2,172.00x = 1,722,013.70
  5. Step 5: Solve for x
    x = 1,722,013.70/2,172.00
  6. Step 6: Final answer
    x = 792.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.