Home / 3,998.82-5,518.27-2,507.55

Finding the Fourth Proportional to 3,998.82, 5,518.27 and 2,507.55

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Solution

The fourth proportional to 3,998.82, 5,518.27 and 2,507.55 is: 3,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.82 : 5,518.27 = 2,507.55 : x
  2. Step 2: Convert to fraction form
    3,998.82/5,518.27 = 2,507.55/x
  3. Step 3: Cross multiply
    3,998.82x = 5,518.27 × 2,507.55
  4. Step 4: Simplify right side
    3,998.82x = 13,837,337.94
  5. Step 5: Solve for x
    x = 13,837,337.94/3,998.82
  6. Step 6: Final answer
    x = 3,460.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.