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Finding the Fourth Proportional to 2,428.73, 3,643.02 and 673.84

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Solution

The fourth proportional to 2,428.73, 3,643.02 and 673.84 is: 1,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.73 : 3,643.02 = 673.84 : x
  2. Step 2: Convert to fraction form
    2,428.73/3,643.02 = 673.84/x
  3. Step 3: Cross multiply
    2,428.73x = 3,643.02 × 673.84
  4. Step 4: Simplify right side
    2,428.73x = 2,454,812.60
  5. Step 5: Solve for x
    x = 2,454,812.60/2,428.73
  6. Step 6: Final answer
    x = 1,010.74

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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.