Home / 3,208.41-4,431.87-2,581.31

Finding the Fourth Proportional to 3,208.41, 4,431.87 and 2,581.31

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Solution

The fourth proportional to 3,208.41, 4,431.87 and 2,581.31 is: 3,565.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.41 : 4,431.87 = 2,581.31 : x
  2. Step 2: Convert to fraction form
    3,208.41/4,431.87 = 2,581.31/x
  3. Step 3: Cross multiply
    3,208.41x = 4,431.87 × 2,581.31
  4. Step 4: Simplify right side
    3,208.41x = 11,440,008.19
  5. Step 5: Solve for x
    x = 11,440,008.19/3,208.41
  6. Step 6: Final answer
    x = 3,565.63

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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.