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Finding the Fourth Proportional to 4,892.73, 7,320.89 and 2,919.41

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Solution

The fourth proportional to 4,892.73, 7,320.89 and 2,919.41 is: 4,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.73 : 7,320.89 = 2,919.41 : x
  2. Step 2: Convert to fraction form
    4,892.73/7,320.89 = 2,919.41/x
  3. Step 3: Cross multiply
    4,892.73x = 7,320.89 × 2,919.41
  4. Step 4: Simplify right side
    4,892.73x = 21,372,683.18
  5. Step 5: Solve for x
    x = 21,372,683.18/4,892.73
  6. Step 6: Final answer
    x = 4,368.25

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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.