Home / 3,998.82-5,519.48-2,320.77

Finding the Fourth Proportional to 3,998.82, 5,519.48 and 2,320.77

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Solution

The fourth proportional to 3,998.82, 5,519.48 and 2,320.77 is: 3,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.82 : 5,519.48 = 2,320.77 : x
  2. Step 2: Convert to fraction form
    3,998.82/5,519.48 = 2,320.77/x
  3. Step 3: Cross multiply
    3,998.82x = 5,519.48 × 2,320.77
  4. Step 4: Simplify right side
    3,998.82x = 12,809,437.17
  5. Step 5: Solve for x
    x = 12,809,437.17/3,998.82
  6. Step 6: Final answer
    x = 3,203.30

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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.