Home / 3,321.66-4,578.88-2,731.17

Finding the Fourth Proportional to 3,321.66, 4,578.88 and 2,731.17

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Solution

The fourth proportional to 3,321.66, 4,578.88 and 2,731.17 is: 3,764.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.66 : 4,578.88 = 2,731.17 : x
  2. Step 2: Convert to fraction form
    3,321.66/4,578.88 = 2,731.17/x
  3. Step 3: Cross multiply
    3,321.66x = 4,578.88 × 2,731.17
  4. Step 4: Simplify right side
    3,321.66x = 12,505,699.69
  5. Step 5: Solve for x
    x = 12,505,699.69/3,321.66
  6. Step 6: Final answer
    x = 3,764.89

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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.