Home / 3,998.81-5,519.73-2,406.35

Finding the Fourth Proportional to 3,998.81, 5,519.73 and 2,406.35

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Solution

The fourth proportional to 3,998.81, 5,519.73 and 2,406.35 is: 3,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.81 : 5,519.73 = 2,406.35 : x
  2. Step 2: Convert to fraction form
    3,998.81/5,519.73 = 2,406.35/x
  3. Step 3: Cross multiply
    3,998.81x = 5,519.73 × 2,406.35
  4. Step 4: Simplify right side
    3,998.81x = 13,282,365.66
  5. Step 5: Solve for x
    x = 13,282,365.66/3,998.81
  6. Step 6: Final answer
    x = 3,321.58

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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.