Home / 3,418.61-5,120.96-2,542.05

Finding the Fourth Proportional to 3,418.61, 5,120.96 and 2,542.05

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Solution

The fourth proportional to 3,418.61, 5,120.96 and 2,542.05 is: 3,807.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.61 : 5,120.96 = 2,542.05 : x
  2. Step 2: Convert to fraction form
    3,418.61/5,120.96 = 2,542.05/x
  3. Step 3: Cross multiply
    3,418.61x = 5,120.96 × 2,542.05
  4. Step 4: Simplify right side
    3,418.61x = 13,017,723.66
  5. Step 5: Solve for x
    x = 13,017,723.66/3,418.61
  6. Step 6: Final answer
    x = 3,807.91

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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.