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Finding the Fourth Proportional to 2,188.63, 3,283.16 and 872.07

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Solution

The fourth proportional to 2,188.63, 3,283.16 and 872.07 is: 1,308.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.63 : 3,283.16 = 872.07 : x
  2. Step 2: Convert to fraction form
    2,188.63/3,283.16 = 872.07/x
  3. Step 3: Cross multiply
    2,188.63x = 3,283.16 × 872.07
  4. Step 4: Simplify right side
    2,188.63x = 2,863,128.67
  5. Step 5: Solve for x
    x = 2,863,128.67/2,188.63
  6. Step 6: Final answer
    x = 1,308.18

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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.