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Finding the Fourth Proportional to 8,241.89, 12,363.41 and 2,980.01

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Solution

The fourth proportional to 8,241.89, 12,363.41 and 2,980.01 is: 4,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.89 : 12,363.41 = 2,980.01 : x
  2. Step 2: Convert to fraction form
    8,241.89/12,363.41 = 2,980.01/x
  3. Step 3: Cross multiply
    8,241.89x = 12,363.41 × 2,980.01
  4. Step 4: Simplify right side
    8,241.89x = 36,843,123.79
  5. Step 5: Solve for x
    x = 36,843,123.79/8,241.89
  6. Step 6: Final answer
    x = 4,470.23

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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.