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Finding the Fourth Proportional to 3,298.86, 4,943.05 and 2,679.55

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Solution

The fourth proportional to 3,298.86, 4,943.05 and 2,679.55 is: 4,015.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.86 : 4,943.05 = 2,679.55 : x
  2. Step 2: Convert to fraction form
    3,298.86/4,943.05 = 2,679.55/x
  3. Step 3: Cross multiply
    3,298.86x = 4,943.05 × 2,679.55
  4. Step 4: Simplify right side
    3,298.86x = 13,245,130.57
  5. Step 5: Solve for x
    x = 13,245,130.57/3,298.86
  6. Step 6: Final answer
    x = 4,015.06

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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.