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Finding the Fourth Proportional to 4,428.32, 6,638.22 and 1,654.22

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Solution

The fourth proportional to 4,428.32, 6,638.22 and 1,654.22 is: 2,479.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.32 : 6,638.22 = 1,654.22 : x
  2. Step 2: Convert to fraction form
    4,428.32/6,638.22 = 1,654.22/x
  3. Step 3: Cross multiply
    4,428.32x = 6,638.22 × 1,654.22
  4. Step 4: Simplify right side
    4,428.32x = 10,981,076.29
  5. Step 5: Solve for x
    x = 10,981,076.29/4,428.32
  6. Step 6: Final answer
    x = 2,479.74

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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.